5000 câu trắc nghiệm Tiếng Anh 9 có đáp án - Phần 17

The greater the number of bacteria attacking the system_______ a. the sooner treatment must be begun

8/20

The greater the number of bacteria attacking the system_______

the sooner treatment must be begun

sooner must begin treatment

begin treatment as soon as possible

must begin treatment sooner

Giải thích

Chọn đáp án A