Bài giảng Tiếng Anh Lớp 12 - Revision: The Conditional Sentences

	+ had + V - ed / V 3 	 S + would/ could + 	have + V - ed / V 3 
Ex: If I had known your telephone number, he would have phoned you. 
Emphasize: Had he known your telephone number, he would have phoned you. 
* TYPE 3. Unreal condition in past. 
NOTES:Ex1: If you visit him, give him my best wishes.Ex2: If you heat ice, it turns to water.Ex3: If you had prepared your lessons carefully last night, you wouldn’t be punished now. 
1. If that cake costs much, I _____ a small one. 
A. Would buy	 B. would have bought 	C. will buy 
2. If I _____ you, I would tell the truth. 
A. were	B. am	C. had been 
3. If you hadn’t stayed up late last night, you ____ tired now. 
A. would have been	B. wouldn’t be	C. would be 
4. If I had taken his advice last night, I ____ rich. 
A. would be	B. would have been	C. will be 
5. _____ you need money, I will lend you some. 
A. Were	B. Should	C. Had 
6. _____ there not been this mistake, I would have got full marks for the test. 
A. had	B. had	...Ex1: I will take the oral test tomorrow. 
→ I wish I wouldn’t take the oral test tomorrow. 
→ If only I wouldn’t take the oral test tomorrow. 
Ex2: It’s very hot now. 
→ I wish it weren’t hot now. 
→ If only it weren’t hot now. 
Ex3: I didn’t meet you yesterday. 
→ I wish I had met you yesterday. 
→ If only I had met you yesterday. 
6. As if/ as though ( như thể là )Ex1: She sings as if she were a singer.Ex2: He acted as if he had been a hero. 
Exercise 1: Choose the best answer.  
1. ____ water, life wouldn’t exit.A. so long as B. Unless C. Without	 
2. Trees won’t grow____ there is enough water.A. If	B. when	 C. unless	 
3. You’d better stop spending money; ____, you will end in debt.A. unless B. otherwise	 C. without	 
4. Put on the toys away ____ someone slips and falls on them.A. provided that	B. so long as B. in case 
5. You’ll find their house ____ you take a good street map with you.A. as long as B. otherwise	C. but for	 
4. He looked tired as though he ___very hard. 
A. worked	B. has worked C. works 	 D. had worked	 
Exercise 2: Choose the best answer.  
Mary dresses as if she ___ a Queen. 
A. Is	B. were	 C. had been	 D. has been 
2. Tom talked as if he ___ my boss. 
A. were	B. had been C. is 	 D. has been 
3. She wishes she ___ blue eyes. 
A. had	B. has	 C. had had	 D. has had 
5. I’m sorry that I told him my secret. 
I wish I ____ him my secret. 
had told	B. hadn’t told	 
C. didn’t tell 	D. had known 
2. It’s a pity that you didn’t tell us about this. 
A. I wish you had told us about this. 
B. I wish you told us about this. 
C. I wish you would tell us about this. 
1. What a pity I didn’t meet you yesterday. A. If only I met you yesterday.	B. If only I meet you yesterday.C. If only I had met you yesterday. 
Exercise 3: Choose the best answer. 
3. I’m sorry that I don’t live nearer. 
A . I wish I lived nearer. 
B. If only I lived nearer. 
C. A and B are correct 
4. He is not rich. 
A . He acts as if he