EX3.
1. You could make better progress if you... (attend) class regularly
2. If I .... (know) his telephone number, I'd give it to you
3. If he worked more slowly, he... (not make) so many mistakes
4. I shouldn't drink that wine if I... (be) you
5. If someone (give).... you a boat, what you (do)....?
6. If you are kind to me, I (be)... good to you
7. He (come).... if you waited
8. If you (ring) ... the bell, the servant would come
9. It is (not, rain)... a lot, the rice crop wouldn't grow
10. If today (be) .... Sunday, we wouldn't have to work
EX4:
1. Keep silent or you'll wake the baby up
-> If.......................
2. Stop talking or you won't understand the lesson
-> If................
3. I don't know her number, so I don't ring her up
-> If.....................
4. I don't know the answer, so I can't tell you
->.........................
5. We get lost because we don't have a map
-> If...................
6. Susan felt sick because she ate four cream cakes
->If............................
7. If anyone didn't come, we would phone you at once
-> Unless.................
8. If we had enough rain, we couldn't grow rice
-> Unless......................
EX3.
1. You could make better progress if you...attended (attend) class regularly
2. If I .knew... (know) his telephone number, I'd give it to you
3. If he worked more slowly, he..wouldn't make. (not make) so many mistakes
4. I shouldn't drink that wine if I.were.. (be) you
5. If someone (give)..gave.. you a boat, what would you (do)...do.?
6. If you are kind to me, I (be).will be.. good to you
7. He (come).would come... if you waited
8. If you (ring) rang..the bell, the servant would come
9. It is (not, rain)... a lot, the rice crop wouldn't grow -> sai đề rồi
10. If today (be) were..Sunday, we wouldn't have to work
EX4:
1. Keep silent or you'll wake the baby up
-> If...you don't keep silent,you'll wake the baby up...........
2. Stop talking or you won't understand the lesson
-> If....you don't stop talking,you won't understand the lesson.......
3. I don't know her number, so I don't ring her up
-> If..I knew her number,I would ring her up...................
4. I don't know the answer, so I can't tell you
->...If I knew the answer,I could tell you......................
5. We get lost because we don't have a map
-> If....we had a map,we wouldn't get lost...............
6. Susan felt sick because she ate four cream cakes
->If...Susan hadn't eaten four cream cakes,she wouldn't have felt sick...........
7. If anyone didn't come, we would phone you at once
-> Unless...anyone came,we would phone you at once..............
8. If we had enough rain, we couldn't grow rice
-> Unless...we had enough rain,we couldn't grow rice.................
(nhưng câu 8 cũng sai đề rồi :))) phải là if we didn't have enough rain,we couldn't grow rice thì đáp án mới như trên)