Cho hình chóp SABCD. M là điểm thuộc miền trong tam giác SAB. Xác định giao tuyến của 2 mặt phẳng

1. SAB và SBC

2. SAD và SBC

3. SAC và SBD

4. SMD và SAD

Ai biết làm chỉ mình với mình cần gấp ạ

Make the questions for the following sentences.

1. She will be married to a rich man➜Who..................................................................................................

2.Tom goes to the library twice a week.➜How often.................................................................................

3. I went to school late because I missed the bus➜Why.....................................................................

4. She is a doctor➞What..............................................................

5. They were watching a game show➜What...........................................

Exercise 1: Put the verb in the brackets in the correct tense

1. How many times.....you( see)....him since he went to Edinburgh.

2. Do you know that man, who (smoke).....there.

3. I (see)....that film several times because I like it.

4. in what year.....World War II (break)....out?

5. We will go out when it (stop)...raining.

6. When...you (buy).....your bicycle?

7. Long ago, my young brother often (cry).... at night.

8. I (come)....as soon as my study is finished. (you be).....ready?

9. We (meet)....only yesterday and (already decide)....to get married.

10. You look tired. You (work).....hard?