“You should have waited for us,” the team leader said to John.

àThe team leader criticised. ..................................................................................................................

It’s possible that he didn’t get my letter.

à He might.. ......................................................................................................................

The last time it snowed here was six years ago.

 à It............ ...................................................................................................................

I only realized what I had missed when they told me about it later.

àOnly when..... ......................................................................................................................

There weren’t nearly as many people there as I had expected.

à There were far..... .....................................................................................................................

When the Minister was asked about the strike, he declined to comment.

à On......... ...................................................................................................................

There was no need for you to have gone to all that trouble.

à You........ ..........................................................................................................................

Please don’t say things like that.

à I wish...... .....................................................................................................................

1.     I’d like you to waid until they bring out a new model. (rather)

à....... .......................................................................................................................

2.     We couldn’t find the cat anywhere. (nowhere)

 à...... ........................................................................................................................

3.     What finally ended the dispute was the fact that the union agreed to go to arbitration. (agreement)

à........ ......................................................................................................................

4.     He won’t let anyone else touch his records (objects)

à..... .........................................................................................................................

5.     The fact that nobody said anything at the time surprised me. (what)

à... ...........................................................................................................................

6.     The referee first blew the whistle 30 minutes into the game. (playing)

à.... ..........................................................................................................................

7.     I admitted it was my fault for burning the toast. (blame)

à.... ..........................................................................................................................

8.     It’s becoming extremely expensive to maintain the museum. (unkeep)

à... ...........................................................................................................................

This is the best essay I have ever written.

à Never... .....................................................................................................................

I assumed that she would learn how to take shorthand after this course.

à I took it... .......................................................................................................................

I am terribly sorry; I thought you were a friend of Anna’s.

à I took.... ..........................................................................................................................

Although she was busy, she managed to find the time to proofread for me.

 àBusy.... .......................................................................................................................

I would prefer you to do computer science.

à I’d rather.... ........................................................................................................................

He didn’t get his visa until last Monday.

à It was...... ........................................................................................................................

They continued to say that I was to blame.

à They persisted.... ..........................................................................................................................

Vietnamese coffee is considered to be one of the best in the world.

à Vietnamese coffee.... .....................................................................................................................

If you ask me well in advance I’ll be willing to work over time.

à Provided you....... ..........................................................................................................................

“I never used bad language,” she said.

à She denied........ ........................................................................................................................

1.     He failed his exam because he missed classes so often. (consequence)

à ... ..........................................................................................................................

2.     Send me a postcard as soon as you arrive. (minute)

à.... ..........................................................................................................................

3.     You don’t have to do it if you don’t want to. (obligation)

à .... ..........................................................................................................................

4.     I tried as hard as I could but I still failed my driving tests. (however)

à .. ............................................................................................................................

5.     I felt that it had been a big mistake to give up that job. (regretted)

à .... ..........................................................................................................................

6.     Strangers are not to be let in. (account)

à ... ...........................................................................................................................

7.     He joined the army as soon as he had finished school. (sooner)

à ... ...........................................................................................................................

8.     If it weren’t for the weather, I would enjoy working here so much (but)

 à .... ..........................................................................................................................

9.     It rained torrentially all day yesterday, which really depressed me. (got)

 à ... ..........................................................................................................................

10.  I wrote this book because I want to help students with their writing. (view)

à ..... .........................................................................................................................

Complete the sentences with the appropriate form of the words in parentheses. Add not if necessary for a sentence to make sense: 

3. A: Why didn't Diane come to the phone? I know she was home when I called. 

B: I don't know. She (might + wash)________________her hair when you called. Who knows? 

4. There's Tom. He's standing at the bus stop. He (must + wait)____________for the two o'clock bus.

5. Kathy lost her way while driving to River City. She (should + leave)__________her road map at home.

6. A: Where's Ann? 

B: I don't know. She (could + visit)________________her aunt and uncle right now. She usually visits them every Friday evening.

7. You (should +watch)__________the movie on TV tonight. I highly recommend it. It's a classic. 

8. I heard a loud crash in the next room. When I walked in, I found a brick on the floor, and the window was broken. Someone (must + throw)________________the brick through the window. 

9. Jack is in the employee lounge drinking coffee. He (should + work)_____________on his report right now. It's due at 3:00 this afternoon. He (should + waste)_____________his time in the employee lounge. 

10. A: Where's Jane? I haven't seen her for a week. 

B: I'm not sure. She (might + travel)___________in Europe. I think I heard her mentioning something about spending a few weeks in Europe this spring. 

11. My tweed jacket isn't in my closet. I think my roommate (might + borrow)_________it. He often borrows my things without asking me. 

12. Do you hear that guitar music? Carla (must + play)_____________her guitar. 

13. A: When I arrived, Dennis looked surprised. 

B: He (must + expect)________________you. 

14. A: I couldn't reach Peter on the phone. I wonder where he was.

B: He told me he was going to wash his car and then go to dinner at the Bistro Cafe. He (might + wash)____________his car when you called, or he (may + leave + already)__________for the restaurant by then.

Bài 4 (3,5 điểm):

1. Cho tam giác abc có ba góc nhọn nội tiếp (O:R). Hạ các đường cao AD, BE của tam giác cắt nhau tại H và kẻ đường kính CF của (O)

       a) Chứng minh các điểm A, E, D, B cùng nằm trên một đường tròn.

       b) Chứng minh tứ giác AHBF là hình bình hành.

        c) Cho (O) và dây AB cố định, điểm C di chuyển trên cung lớn AB. Chứng minh rằng độ dài bán kính đường tròn ngoại tiếp tam giác CDE luôn không đổi.