As some of the senior officers had very little Eng...

Câu hỏi: As some of the senior officers had very little English at school, additional interpreters _________ needed. The exact number should be known on their arrival.

A have better been                                                

B might have been

C had better been                                                  

D may now be

Câu hỏi trên thuộc đề trắc nghiệm

- Luyện tập về Động từ khuyết thiếu