A.Chia động từ trong ngoặc
1.I (not do)...........that if I (be)......you
2.He never does homework.If he (do) his homework,he (not worry)............about his exam.
3.It's too bad we lost the game.If you (play)..........for us,we (win)...........
4.What you (do)...........if she refuses your invitation?
5.If today (be).........Sunday,we (go)........to the beach.
6.You (be).........ill if you drink that water.
7.If Tom (go)............to bed earlier,he wouldn't be so tired.
8.If it rains heavily,we (not go).........for a walk.
9.I could understand the French teacher if she (speak).........more slowly. 
10.If I finish the work in time,I (go).......to the football game.
11.If you (see)..........Mary today,please ask her to call me.