Carry your bag. A. 背上书包。 B. 盖上书。 C. 我有一本书。 D. 我有一个书包。

Carry your bag. A. 背上书包。 B. 盖上书。 C. 我有一本书。 D. 我有一个书包。

The correct answer is:

A. 背上书包。

This means "Carry your bag" or "Put on your backpack," which fits the given phrase.

The other options don't match the intended meaning:

B: 盖上书 means "cover the book."

C: 我有一本书 means "I have a book."

D: 我有一个书包 means "I have a backpack."

Let me know if you need any more help with this!