Tìm lỗi ở phần gạch chân của mỗi câu sau

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Ex 5. Tìm lỗi ở phần gạch chân của mỗi câu sau:

1. What is the second longest river in our country? Hong or Mekong?
A B C D

2. We are real interested in learning Maths.
A B C D

3. He asked me that if I liked learning Music.
A B C D

4. London, capital of England, is situated on the Thames river.
A B C D

5. Ba is very depressing (A) because his closest (B) friend is moving (C) to another (D) town.