To remain on the safe side, we should not take thi...
Câu hỏi: To remain on the safe side, we should not take things for granted and should be able to cope with all kinds of contingency; in Salts, for in stance, the villagers ____________ for accommodating all the visitors.
A may have been unprepared
B need not to be prepared
C must not be prepared
D may be unprepared
Câu hỏi trên thuộc đề trắc nghiệm
- Luyện tập về Động từ khuyết thiếu