They have to finish the report to day ?

=>The report____________________.

You should send this letter before saturday ?

=>This letter____________________.

I think he should decorate his room again

=>I think ______________________

It has been a long time since Lan left her school

=>Lan________________________________.

7 chứ không phải 4 đâu mik làm rồi mà

Diện tích hình chữ nhật là:

50 x 10 = 500 (m2)

Đáp số:500m2