问题
选择题
—When will Mother come back?
—She _____ to be here by eight o’clock tonight.
A．is supposing
B．supposed
C．was supposed
D．is supposed
答案
答案：D
考查短语be supposed to“应该”，根据时间状语tonight可知要用现在时态。句意：妈妈什么时间回来？她应该今晚八点到这。