. There ____ be a flight for Kunming thi
题型：选择题
问题：
. There ____ be a flight for Kunming this evening, but you’d better find 
it out for sure.
A．may
B．must
C．should
D．will
. There ____ be a flight for Kunming this evening, but you’d better find it out for sure.
A．may
B．must
C．should
D．will