-- Air pollution was the biggest problem in the _______ in this city.-- Yes. But now the people here are trying hard to make the air become better and _____.

题型：单选题题类：常考题难易度：普通

-- Air pollution was the biggest problem in the _______ in this city.

-- Yes. But now the people here are trying hard to make the air become better and _____.

A、past; well B、past; better C、present; better D、present; well

举一反三

— No. She does ____ in English, but I am not.

—I think so, and it is very ____ in cities.

{#blank#}1{#/blank#} {#blank#}2{#/blank#} eighty percent of the students watch TV for {#blank#}3{#/blank#} {#blank#}4{#/blank#} an hour every day.

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