问题

Why are you worried—I’m expecting a call from my daughter. She New York for three days.
A:before
B:when
C:till
D:since;
B:when
C:till
D:since;
正确答案是:
同类题型
We had better set off at once because time is __________.—OK. Let’s start.
Amy, I haven’t finished my homework, so I can’t go swimming with you.—_______.
match between these two teams was great,” said Jim, “ and I hope to see ___ second.”
Receiving good treatment, she was beginning to ________ and soon came back to work.