From a strictly medical point of view all the children ought to have been vaccinated three months ago.. Anyway we should begin vaccinating them the day the vaccine………………….ready.

Câu hỏi :

From a strictly medical point of view all the children ought to have been vaccinated three months ago.. Anyway we should begin vaccinating them the day the vaccine………………….ready.

A is 

B  was 

C would be 

D had been

* Đáp án

A

* Hướng dẫn giải

Phương pháp giải:

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