It / easy / get / flu /. / we / should / try / keep / clean / more/ .

2/20

It am easy to get flu. We should try to keep clean more.

It is easy to get flu. We should to try to keep clean more.

It is easy to get flu. We should try to keep clean more.

It is easy to get the flu. We should try to keep clean more.

Giải thích

Đáp án đúng là: C

- Get flu = bị cảm cúm

- Should + Vinf = nên làm gì

Dịch: Rất dễ bị cảm cúm. Chúng ta nên cố gắng giữ sạch sẽ hơn.