小学四年级下册英语练习册86页,87页答案

如题所述

I.1-5 BBCCA
II. 1. hurry 2. questions 3. crowded 4. among 5. Finally
III. 1. What is, doing 2. Whatshould, do 3. should not 4. No, needn’t 5.betternot
IV. 1. spreading easily among 2.keep away from / not go to 3. work on 4. allthe time
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