theo thứ tự từ 37 đến 49 bạn nhé! 

B;A;A;D;C;B;C;B;B;B;D;C;D

1. How much is this book?/ How much does this book cost?

2. How much does your dress cost?

3. What is the price of your blue shirt? 

4. How much is the red car?/ How much does the red car cost?

1. busy/ busier

2. are/is 

3.biger/ bigger

4.does/ do

5. coming/ to come

1. will probably go 

2. are you wearing 

3. have found 

4. am doing 

5. will stay 

6. am 

7. will help 

8. will not rain 

9.will come 

10. is raining 

1. join -> joined

2. did ( thứ 2 trong câu) -> do

3. did ( trong câu trả lời)-> did not

4.on-> in

5.book -> books