—Mum，I want to play computer games now.
—Sorry，you can’t ______ you have finished your homework.
| A．until | B．if | C．after | D．when |
____ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
| A．While | B．As | C．Because | D．If |
–Where are the students? How could they keep us waiting for so long?
–They started an hour ago and they ____ be here in fifteen minutes, I think.
| A．can | B．would | C．should | D．must |
–Do you enjoy seeing foreign films?
–Yes. Some of them are good and the film Avatar ____ is excellent.
| A．in common | B．in total | C．in particular | D．in general |
Jack, it’s your fault. You must ____ your differences and get down to the task.
| A．put away | B．put off | C．put out | D．put aside |
–This is absolutely daylight robbery.
–How much did that so-called teacher ____ for her teaching out of class?
| A．spend | B．pay | C．cost | D．charge |