五年级下册英语课课练答案人教版32-36

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.better not
IV. 1. spreading easily among 2.keep away from / not go to 3. work on 4. all the time