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
TẠI SAO LẠI CHỌN D Ạ!!!!
