—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
.-- Which room shall we live in tonight? – In __________.
| A．the Room 406 | B．Room 406 | C．the 406 Room | D．406 Room |
There may be something wrong with her ______,she can' t see things clearly.
| A．eyes | B．ears | C．mouth | D．nose |
The room is too small, there' s no enough ________for another desk.
| A．place | B．room | C．floor | D．ground |
He has searched the ________ or 2 hours for the information about Yang Liwei.
| A．mouse | B．keyboard | C．Internet | D．computer |
_________ mother is a worker.
| A．Mary and Mike's | B．Mary's and Mike's | C．Mary's and Mike | D．Mary and Mike |