BẠN NÀO BEST ANH GIÚP MÌNH VS

Exercise 4: Supply the correct forms of the verbs in brackets

1. If I had known you were coming, I (ask) _______________ him to stay here.

2. He would not have gone home at lunchtime if he (not / be) _____________ tired.

3. Yesterday if you (lock) _____________ the door properly, they (not / get) ____________ in.

4. If you (study) ____________ for the test last week, you (pass) ____________ it.

5. Last night, if we (go) ___________ to the cinema, we (see) ____________ my friend Jacob.

Exercise 5: Rewrite the following sentences using conditional sentences.

1. She was away on holiday so she couldn’t come to the party.

2. Because you didn’t follow my advice, we got lost.

3. He couldn’t go abroad because he didn’t have enough money

. 4. I got up late so I missed the train.

5. I was very busy. I couldn’t help you with your homework.

cho tam giác abc,có cạnh ab=6cm,cạnh ac=8cm,canhj bc=10cm

a chứng minh tam giác abc vuông tại a

b giải tam giác vuông abc

cho tam giác abc vuông tại a.biết sinb=3/5.tính tỉ số lượng giác của b