Smith had a lucky escape. He______.
A. would have been killed
B. must have been killed
C. could have been killed
D. should have been killed
KEY: C
Giải thích: could have P2: đã có thể làm gì
Dịch: Smith may mắn thoát nạn. Anh ta đã có thể bị giết
Hardly any of the paintings at the gallery were for sale, _____?
English has become a second language in countries like India, Nigeria or Singapore where_______ for administration, broadcasting and education.