．Who is knocking at the door?
——It ______ Mr. Black, because he_______Washington.
| A．can't be;has gone to | B．may be;has been to |
| C．must’t be;has gone to | D．may be;went |
— You should go over your test paper ________ you hand it in.
— OK, Mr. Wang.
| A．as soon as | B．though | C．because | D．before |
— Let’s go hiking _________ staying at home, shall we?
— Good idea.
| A．as well as | B．in order to |
| C． instead of | D．in addition to |
— ______ is the library from our school?
—It’s quite near. Just go ________ the road.
| A．How far; through | B．How long; across |
| C．How far; across | D．How long; through |
— Can you tell me ____________?
— It happened at 3:00 pm.
| A．when did it happen | B．where it happened |
| C．when it happened | D．where did it happen |
— TV was invented in _________ century.
— Is that true?
| A．twenty | B．twentieth | C．the twenty | D．the twentieth |