问题

What would you do if you _____ an alien in the street
A:meet
B:are meeting
C:have met
D:will meet;
B:are meeting
C:have met
D:will meet;
正确答案是:
同类题型
which of the following sentences is right ?
Excuse me, can I borrow the Robot magazine—Sorry. Sandy it for a week.
You look so happy, Linda.—Yes, Sandy. I have______ to tell you.
Which one can I take—-You can take__________ of them; I’ll keepnone
It is too bad for someone in such a high _____in the government to behave badly in public