. The production of television commercials must be professional ________ they aim at promoting good service, or public education.
| A．when | B．no matter | C．if | D．whether |
—The light in the office is still on.
—Oh, I forgot_________________.
| A．turning it off | B．turn it off | C．to turn it off | D．having turned it off |
—Have you _________some new ideas?
—Yeah, I’ll tell you later.
| A．come about | B．come into | C．come up with | D．come across |
The writer is known ________her novels.
| A．to | B．in | C．for | D．as |
The kind old lady offered to ________the poor homeless stranger.
| A．take off | B．take in | C．take up | D．take out |
It _________have rained last night, for the ground is wet.
| A．may | B．should | C．will | D．must |