1. We used __________ in the garden when we were young    A. play  B. to play  C. played  D. playing

Phương pháp làm câu hỏi trên là sử dụng quy tắc về cấu trúc thì quá khứ đơn.

Câu trả lời:
- We used to play in the garden when we were young.
- When we were young, we used to play in the garden.
- We played in the garden when we were young.

Playing in the garden was something we used to do when we were young.

In the garden, we used to play when we were young.

When we were young, we used to play in the garden.

We used to play in the garden when we were young.