vì sao nói bv mắt ta phải bảo vệ môi trường

a. Cấu trúc để viết câu lại câu qua lại này là gì ạ?

1. How long have you bought this car ?

-->When did you buy this car?

2. When did you start to listen to classical music ?

-->How long have you started to listen to classical music?

b. Giải giúp em câu này

We ( phone) .........you as soon as we ( arrive)....................in Ha Noi.

Choose the best answer.

We are looking for ____ place to spend ____ night.

Choose the best answer.

Please turn off ___ lights when you leave ___ room.

Choose the best answer.

I like _____ colorful costumes of ____ ethnic minority people in Vietnam.