Unless the presentation is ready soon, we’ll have to back out of the project.

 A. We’ll get the project back if the proposal is ready soon

 B. If we don’t complete the presentation, we’ll lose the project

 C. The president is ready to back the project we presented.

 D. We will have to start the project before the presentation is done.

( giải thích hộ mình với )

Tìm lỗi sai :

a. These exercises (A) look easy (B), but they are very relatively (C) difficult for (D) us.

b. It is (A) much better (B) that she learns (C) English at (D) her school.

(Nếu được thì giải thích hộ tớ với ạ, tớ cảm ơn trước)

The men and animals ..... were coming through the streets made a big cloud of dust

A. who         B. which        C. that        D. whom

( nếu được thì giải thích hộ tớ được không ạ ?)