If you like, ____ at any time.
| A．call on | B．drop in | C．visit | D．pay a visit to |
I am really a bit worried because I have no idea what my parents’ will be to my poor examination result.
| A．expression | B．reaction | C．appearance | D．expectation |
Onlywhenonelosesfreedom _______itsvalue .
| A． doesoneknow | B．onedoesknow | C．doesknow one | D．knowonedoes |
Well let you use the room ______you keep it clean and tidy .
| A．even though | B．on condition that | C． if | D．however |
Is thisthe research center _____you visited thelablast year ?
| A． which | B． the one | C．that | D．where |
Don’t believe him .He is just _____ an exc
use .
| A．making out | B．making up of | C．making up | D． making from |