A．acquireB．convenientC．admireD．anxiety
A. acquire
B. convenient
C. admire
D. anxiety
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A．roughB．daughterC．delightD．through
A. rough
B. daughter
C. delight
D. through
The main idea of the whole story is that ______.
A. butterflies like to be sprayed
B. birds are better than sprays to get rid of insects
C. the people in Illinois like to make bird houses
D. baby birds like to eat insects
A．offeredB．judgedC．checkedD．wondered
A. offered
B. judged
C. checked
D. wondered
酸雨是指pH值等于6.0的降水。（）
A. 正确
B. 错误
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