I. 1-5 BCACA
II. 1. themselves 2. himself 3. yourself 4. myself 5. herself
III. 1-5 BACCB 6-10 CBACA
IV. 1-5 CCBCA
V. One possible version:
The flu spreads easily among people. Weshould do our best to prevent it. We should go to bed early and get up early.We should also do some running. It’s good for us to open the windows to let thefresh air in. We’d better not go to crowded places. We must often clean ourhouses, wash hands, and change clothes. We should drink more boiled waterand eat healthy food.