— Who is the man over there? Is it Mr. Wu?
— It ________ him, but I am not quite sure.
| A．may be | B．maybe | C．is | D．must be |
I can’t tell when that house ______ exactly, but it must be very long ago.
| A．is built | B．will build |
| C．was built | D．has built |
—Who’s singing in the next room?
—It ____ be her. She has gone to New York.
| A．can’t | B．must |
| C．shouldn’t | D．can |
—What about going skating this afternoon, Sam?
—I would rather ______ at home than ______ skating on such a cold day.
| A．stay; go | B．stay; going |
| C．to stay; to go | D．to stay; going |
—Where are your parents, Leo?
—They are in Europe for shopping. They______ there for two weeks.
| A．arrived | B．has got |
| C．has gone | D．has been |
—What did the teacher ask you to do just now?
—She said “Each student must ______ a composition once a week.”
| A．hand in | B．put up |
| C．look over | D．hand out |