Cho hai góc A  và B phụ nhau và A-B=36^

Hỏi số đo A và B bằng bao nhiêu?

Exercise 15: Give the correct verb tense 
1. Don't (waste)_____electricity.
2. There (be)_____three bedrooms in the house.
3. He (go)_____ to school with me every day.
4. _____Thu(watch)_____TV just now?
5. Listen! What_____ they (talk)_____ about?
6. My cousins (learn)_____English and I (read)_____a book now.
7. My friends(take)_____a trip to Da Lat next week.
8. We should (protect)_____the forests
9. Let' s (help)_____her.
10. She (not, want)_____ any tea, She (want)_____ some coffee. 

Exercise 16: Give the correct verb tense 
1. Son (be)_____from Vietnam. He (speak)_____Vietnamese. He can (speak)_____English, too.He (live)_____ with his family in Ho Chi Minh City. He often (go)_____ to school on Sundays to practice his English. Tomorrow (be)_____Sunday. He (walk)_____ to school tomorrow. Now he (read)_____a book.
2. He never (close)_____the door before he (leave)_____ home.
3. Lan always (take)_____a shower when she (come)_____home.
4. My friends always (have)______ lunch at school.
5. My girlfriend never (stay)_____ up late.

Exercise 13: Give the correct verb tense 
1. We (come)_____ back next Monday. 
2. What_____ the boys often (do)_____ when it is hot?
3. We should (not, waste)_____ water. 
4. My brother can (swim)_____very well.
5. His sister never (go)_____ to the movies with him.
6. What_____ the girls (do)_____at this time? - They (sing)_____
7. She (travel)_____to Paris next summer.
8.Be quiet! The baby (sleep)_____
9. What (be)_____ your favorite sport?
10. He may (come)_____ into the living room. 

Exercise 14: Give the correct verb tense 
1. Mai (go)_____to bed at 10p.m every night.
2. My uncle sometimes (listen)_____ to the radio.
3. They (not, watch)_____TV at present. 
4. We (come)_____back next Monday
5. What_____ the children (do)_____when it is hot? – They (go)_____ swimming.
6. My brother can (swim)_____very well.
7. What_____the children (do)_____at this time? - They (play)_____soccer in the garden.
8.She (travel)_____to London next summer.
9. Be quiet! The baby (sleep)_____
10. What (be)_____your favorite sports?

Exercise 11: Give the correct verb tense
1. My mother (give)_____me a new bike next week.
2. He (not often go)_____ to the movies on Sunday nights.
3. My mother (not cook)_____in the kitchen now.
4. _____ you (go)______to London next month?
5. _____Lan always (go)_____ to school on weekdays?
6. Where (be)_____Mai now?  - She (play)_____ in the garden.
7. Tomorrow is Sunday. I (do)_____ the housework.
8. The teacher (read)_____the dialogue at the moment and we (listen)_____ to him.
9. Look! She (smile)_____
10. _____ your father never (smoke)_____ cigarettes?

Exercise 12: Give the correct verb tense
1.Laura (be)_____from Canada. She (speak)_____English and French.She (come)_____to Vietnam tomorrow. She (stay)_____in a hotel in Ho Chi Minh City for 3 weeks. She(visit)_____a lot of places inVietnam.
2. Which language_____ Peter (speak)_____?
3. He often (have)_____coffee for breakfast, but today he (eat)_____some eggs.
4. _____the children (play)_____ soccer in the garden at the moment?
5. _____you (can speak)_____ English?
6. We should (do)_____morning exercises.
7. My uncle sometimes (listen)_____to the radio.
8. They (not watch)_____ TV now.
9. _____(be) their school next to their house?
10. _____his friends (help)_____ that old woman tomorrow