—Let’s go out for a walk.
—You’d better not. These days the air is getting much ________ than it was before.
A.better | B.worse | C.cleaner | D.easier |
—Let’s go out for a walk.
—You’d better not. These days the air is getting much ________ than it was before.
A.better | B.worse | C.cleaner | D.easier |
试题篮
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