1.The changes of our life{#blank#}1{#/blank#} us much happiness over the past 30 years.
2.Bob {#blank#}2{#/blank#} with his friends in the river when it suddenly started to rain.
3.I {#blank#}3{#/blank#} out who did it even if you don't tell the truth.
4.Don't disturb him. He {#blank#}4{#/blank#}  for tomorrow's test.
5.Mrs Zhang{#blank#}5{#/blank#} some fresh vegetables and put them in the basket               

(1)Don't worry about the girl too much. Her temperature{#blank#}1{#/blank#} back to normal if she takes this medicine.  
(2)Who {#blank#}2{#/blank#}  my new bike? I can't find it anywhere. I put it here last night.
(3)People often {#blank#}3{#/blank#} forests to build roads in the past. Now they have stopped doing so.
(4)When I passed him just now, he {#blank#}4{#/blank#} the icon on the computer with the mouse.
(5)— Why can't she go to play basketball with us at present?
— She{#blank#}5{#/blank#}  her mother with the housework.

    Trees are useful to man in three very important ways. The first important way is that they provide man {#blank#}1{#/blank#} food, wood and other products(产品). Trees provide man and animals with food to live {#blank#}2{#/blank#} the earth. It's not easy {#blank#}3{#/blank#} man to live on the earth without trees.

    The {#blank#}4{#/blank#} important way is that trees give us shade(树荫). On a hot summer day, people can have {#blank#}5{#/blank#}rest under the shade of a tree after they have walked a long way. You can imagine（想象） {#blank#}6{#/blank#} important the shade of a tree is to man and animals.

    The third important {#blank#}7{#/blank#} is that trees help to prevent droughts（干旱）and floods. However, in many parts of the world, man has {#blank#}8{#/blank#} realized the third important way. He has cut {#blank#}9{#/blank#}trees in large numbers.{#blank#}10{#/blank#} the end, he finds that he has lost his best friends.

— No, she {#blank#}1{#/blank#}. (can't\isn't)

    With more and more cars coming into our families, we are happy that it has greatly improved our life. But {#blank#}1{#/blank#} it has also brought many problems, such as heavy traffic and traffic accidents.

    Traffic safety is everybody's business. We must obey the traffic {#blank#}2{#/blank#} For example, we must walk on walk sides. When we cross zebra-crossing, stop and look {#blank#}3{#/blank#}and left, then go{#blank#}4{#/blank#}he road fast. Don't play football on the road. We can tell our parents not to drink before they drive, not to run through red lights, not to talk and laugh{#blank#}5{#/blank#}we are driving, etc.

    We can say cars are coming into our life, but only when everybody thinks traffic safety is everybody's business can we be safe driving on roads and walking on walk sides.