—Can I go to the park, Mum?
—Certainly. But you ______ be back by six o’clock.
| A．can | B．may | C．might | D．must |
---How about going out for a walk with us?
---I wish I could, I have to finish my homework first.
| A．so | B．and | C．but | D．or |
Excuse me, can you tell me when?
| A．does the ship leave | B．the ship leaves |
| C．had the ship left | D．did the ship leave |
Loud music always makes us .
| A．want dance | B．to want dance | C．want to dance | D．to want to dance |
Tom said he to Guangzhou.
| A．never went | B．had never been | C．has never gone | D．has never been |
of them enjoys traveling by plane.
| A．Each | B．All | C．Both | D．Every |