问题

Mum, it’s late. Why are you still here?—Dad hasn’t come back yet. I _____ for him.
A:am waiting
B:have waited
C:was waiting
D:waited
B:have waited
C:was waiting
D:waited
正确答案是:
同类题型
Is the film interesting? —I thought it would be. But ______, it’s very boring. [ ]
Mom, I’m old enough to wash ________ own clothes and ________. You can have a rest after work.
There __________great changes in our hometown in the past fifteen years.