— Can I come to ask for some advice at any time?
—Yes, of course. ___________ .
| A．If you're convenient | B．At your convenience |
| C．Don't worry | D．Don't mention it |
--Which coat would you prefer, sir?
--I’11 take___________, to have a change sometimes.
| A．all them | B．them all | C．both them | D．them both |
--Tell me where you live, please.
--I live____________.
| A．in 123 ,King Street | B．at 123 ,King Street |
| C．in King Street, 123 | D．at King Street, 123 |
I can't make a decision now. I need _________ more time to think it over.
| A．rather | B．fairly | C．quite | D．lot |
Moreover, __________you may hardly believe, the examiners had decided in advance to fail half the students taking part in the exams.
| A．which | B．that | C．who | D．whom |
He is believed____________ in at his office on his way home.
| A．dropping | B．to have dropped |
| C．having dropped | D．to be dropped |