18． My mother ____ for Beijing in a few days. I wonder when the earliest plane ____ on Monday?
| A．leaves; takes off | B．is leaving; takes off |
| C．is leaving; is taking off | D．leaves; is taking off |
The airplane _____late, for we didn’t see the famous pop singer until 10 pm.
| A．must be | B．will be | C．would have been | D．must have been |
The doctor suggested she ____in bed, while her smiling face suggested there ____nothing serious.
| A．stay, was | B．stayed, was | C．stayed, be | D．stay, be |
_____impressed the audience most was ____ the magician Liu Qian played in this year's Spring Gala.
| A．What; what | B．What; that | C．That; what | D．That; that |
Pointing to the house on ______ roof grew lots of bush, the old man told me that was ______ I would stay.
| A．its ；what | B．whose ；what | C．whose ；where | D．its ；where |
Choosing the right dictionary depends on ______ you want to use it for.
| A．why | B．what | C．how | D．whether |