Teenagers have long been told that being active and {#blank#}1{#/blank#}(take) part in sports is good for their health. But new research suggests that too much sport for teenagers could negatively affect their well-being just as much as too {#blank#}2{#/blank#} sport.

    The US Department of Health and Human Services suggests that young people {#blank#}3{#/blank#}(age) between 6 and 17 work{#blank#}4{#/blank#}at least 60 minutes a day, 7 hours a week. But researchers from Switzerland say their study suggests that 14 hours of physical activity a week is best for promoting good health in teenagers. However, more than 14 hours {#blank#}5{#/blank#} (appear) to be harmful to their health. To reach their findings, they had 1,245 teenagers {#blank#}6{#/blank#}(survey) in their research.

    All participants (参与者) were required to answer questions about height and weight, sports practice, sports {#blank#}7{#/blank#} (injure) and well-being. Their well-being was measured using the Word Health Organization (WHO) Well-being Index, {#blank#}8{#/blank#} provides scores between 0 and 25. Of the participants, 50.4% were male. Almost 9% of these males were overweight. The overall {#blank#}9{#/blank#}well-being score for all participants was 17.

    The researchers divided sports participants into low, average, {#blank#}10{#/blank#}, and very high. The researchers found that participation in the low and very high activity groups were more likely {#blank#}11{#/blank#} (have) well-being scores below 13, compared with participants in the average group. The researchers found that the highest well-being scores were {#blank#}12{#/blank#} a by participants who carried out around 14 hours of physical activity a week, but beyond 14 hours resulted {#blank#}13{#/blank#} lower well-being scores.

    The researchers suggest that doctors {#blank#}14{#/blank#} care for teenagers should check their level of sports practice. Teenagers {#blank#}15{#/blank#} (probable) need a supportive and closer follow-up of their health and well-being.

    No trip would be complete without experiencing the local food culture. Actually, China has various kinds of delicious food, including a wide variety of local snacks.

    For most of the foreigners I contacted, and myself {#blank#}1{#/blank#} (include), Peking Duck, Mongolian Hot Pot are the favourite Chinese dishes. China is a place {#blank#}2{#/blank#} the food is not only delicious, but the {#blank#}3{#/blank#}(cheap) I've ever found.

    {#blank#}4{#/blank#} my last night in Beijing before {#blank#}5{#/blank#} (return) to the States, I went to a Peking Duck restaurant that had been suggested for me to try. What a beautiful place! Splendid woodblock prints on the walls, fresh flowers in the vases,  {#blank#}6{#/blank#}(attract) silverware (银餐具) and beautiful chopsticks. I was handed {#blank#}7{#/blank#} menu and found most of the prices were especially low for the high quality of the food. The lucky came in whole or half, along with all the little decorations - a little tortilla (玉米粉圆饼) to put the sliced cluck and vegetables in, chopped onion and sauce.

    Anyway, I ordered a whole duck, thinking I'd just take the rest back to my hotel {#blank#}8{#/blank#}(eat) later if I couldn't finish it.{#blank#}9{#/blank#}(believable), in the end there was none of the whole duck {#blank#}10{#/blank#}(leave) on the plate.

    Mr.Brown was tired of living in the big city {#blank#}1{#/blank#} he worked. He wanted to move to the country and live in a house from which he could get to his office in the city early every day. He {#blank#}2{#/blank#} (look) for a house when he saw an advertisement in a newspaper one day. The advertisement said that a suitable house in a quiet area was up for sale {#blank#}3{#/blank#} a reasonable price, and the house was within a stone's throw of a railway station from which there were frequent {#blank#}4{#/blank#} (train) to the big city.

    "That's exactly {#blank#}5{#/blank#} I need," Mr. Brown said to {#blank#}6{#/blank#} (him). So he called the housing agency and arranged to go by train the next day {#blank#}7{#/blank#} (have) a look at the house.

    The housing agent met him at the station and they started walking. It took them at least 15 minutes to get to the house. When they finally arrived, Mr. Brown said {#blank#}8{#/blank#} (angry), "I should be very {#blank#}9{#/blank#} (interest) to meet the man who threw the stone you mentioned in {#blank#}10{#/blank#} newspaper."

    The Hong Kong-Zhuhai-Macao Bridge, the world's{#blank#}1{#/blank#}(long) cross-sea bridge, enters the history of human engineering and connection as a point of pride upon {#blank#}2{#/blank#}(it) opening to traffic at 9 am on Oct.24, 2018.

    One day after the opening was announced at a ceremony{#blank#}3{#/blank#}(hold) in Zhuhai, the bridge's ports in three different administrative regions started serving travelers around-the-clock , opening 24 hours a day, seven days a week.{#blank#}4{#/blank#} (ensure) faster boundary crossings for passengers, the Macao and Zhuhai ports jointly use a one-off immigration clearance model,{#blank#}5{#/blank#}allows travelers to queue up only once to finish both exit and entry procedures of the two cities in about 30{#blank#}6{#/blank#}(second).

    Apart{#blank#}7{#/blank#}private cars, taxis and goods vehicles, two types of public transportation -shuttle bus(班车)and cross-boundary coach --can also run on the HZMB.{#blank#}8{#/blank#}frequency of shuttle buses is about 5-10minutes during peak hours. Booking tickets for the shuttle bus online in advance{#blank#}9{#/blank#}（be）available since 9 am on Tuesday. With the bridge now in service, the traveling time between Zhuhai and Hong Kong International Airport will{#blank#}10{#/blank#}(shorten) from four hours to 45 minutes, and the time between Zhuhai and Hong Kong's Container Terminals will be cut from 3. 5 hours to 75 minutes.