Exercise 6: Mỗi câu sau chứa một lỗi sai. Tìm và sửa chúng. 1. Are you do homework right now? 2. The children play football in the back yard at the moment. 3. What does your elder sister doing? 4. Look! Those people are fight with each other. 5. Noah is tries very hard for the upcoming exam.

`1`Are you do homework right now?

`⇒` do `⇔` doing (right now là hiện tại tiếp diễn -> thêm "ing")

`2` The children play football in the back yard at the moment.

`⇒` play `⇔` are playing (at the moment là hiện tại tiếp diễn -> thêm "ing")

`3`. What does your elder sister doing?

`⇒` Does `⇔` is (chỉ dùng is/are doing chứ không dùng does doing)

`4`. Look! Those people are fight with each other.

`⇒` fight `⇔` fighting (có look là hiện tại tiếp diễn -> thêm "ing")

`5`. Noah is tries very hard for the upcoming exam.

`⇒` tries `⇔` trying (không dùng is tries)