1.she studies Math on Monday and Thursday

when does she study math ?

2.our most popular after-school activity is badminton

what is our most popular after-school activity?

3.the library opens at 7.30 in the morning

what time the library open?

4. the school library contains over 20 thousand books 

how many books in the school library?

5. over 5000 people work in the United States' Library  of congress

how many people are there work in the United States' Library  of congress

6.i often go to play football with my frends in the afternoon

who do you often  go to play football with in the afternoon

7. my mother is cooking in the kitchen

what is my mother doing in the kitchen?

Ta có : xÔz + zOy = 180 độ ( hai góc kề bù )

    Hay : 120 độ + zOy = 180 độ

Do đó : zOy = 180 độ - 120 độ = 60 độ

Vì tia Ot là tia phân giác của góc xOz

Nên : xOt = tOz = xOz/2 = 120 độ/2 = 60 độ

Và Ta còn có :tOy= tOz + zOy

Vậy : tOy = 60 độ + 60 độ = 120 độ

**** !

I. 1. They have offered Quang the opportunity to study abroad.

       Quang has been offered the opportunity to study abroad.

   2. Was Tom given a lot of presents on his birthday?

       Did a lot of presents given on his birthday?

   3. Is Professor Cook teaching that course this semester?

       Is that course teached by professor this semester?

   4. The construction of the lectuce hall cannot be completed until next month.

       We cannot complete the constructure of the lecture hall until next month

The word "raise" in line four closely means ........

A. Feed B. Grow C. Eat D. Have

1. My brother often has a three - weeks => week summer vacation.

2.Everyday my mother spends one - hour to watch television.

3. She ask=>asks Peter go to the post office with her.

4. I'm going to watch a=>bỏ TV tonight to see a movie about America.

5. I have to stay all day at home on Sundays, so has she.

6. When I was coming =>came home, my mother was cooking dinner. 

7. My mother bought for me a new schoolbag on=>in the occasion of a new school year.

8. Tom looked sadly =>sad when I saw him.

9. Who will give=>take care of the house while we are away?

10. Because we have to be=>bỏ there in a hurry, we better take a taxi.

1-It's my friend's birthday and I haven't.had her a present.

2-They are having a party tomorrow. They've  invited .a lot of friends

3-It's only eight o'clock and Nick has already goneto bed.

4-Has your uncle ever travelled to Austraylia?

5-Who's that man? I've never seen him before.

6- She has.vived .in many places.

7-My teacher has never. been by air.

8-How many times has Arentina. won the World cup.

9-My father has bought .this car sincer May.

10-I've known him for a long time

1. Were / you / when / watching / TV / I / arrived /? /

were you watching tv when i arrived?

2. lats / I / broke / a plate / night / while / doing / I / was / the / washing up /. /

i broke a plate last night while i was doing the washing up.

3. when / i / Carol / saw / at the party / she / was / beautiful / wearing / a / dress /. /

when i saw carol at the party, she was wearing a beautiful dress.

4. What were / you / this / doing / at/ time/ yesterday /? /

what were you doing at this time yesterday?

5. Susan / was / me / waiting / home / for / at / when / I / arrived yesterday /. /

suasan was waiting for me at home when i arrived yestesteday.

Mình nghĩ là n = 199. (Có sai đừng trách mình nha!!!)

All the teachers love him because his conduct is good.

   - Because of his good conduct, all the teachers love him            

. We couldn’t study because it was noisy.

   - Because of the fact that it was noisy, we couldn't study.          

 His wife usually gives him a list because he often forgets things.

   - Because of the fact that  he often forgets things,  His wife usually gives him a list           

He is dismissed because of being late for work often.

      - Because he is often late for work, he is dismissed.                

 Because of driving too fast, he caused a serious  accident.

      - Because  he drove too fast, he caused a serious accident              

 Because he got up early, he wasn’t late for the first train.

      - Because of  getting up early, he wasn’t late for the first train.      

He carried the bed onto the roof of his house because of the hot weather.

      - Because the weather is hot , He carried the bed onto the roof of his house               

I couldn’t do the test because it was difficult.

      - I couldn’t do the test because of the fact that it was difficult     

Because of not knowing Russian, I’ve had to have the document translated into French.

      - Because i don't know russian,  I’ve had to have the document translated into French.