You don't need to describe her, I ___ her serveral times.
| A．had met | B．have met | C．met | D．meet |
______, the concert began.
| A．The listeners having taken their seats | B．Having taken their seats |
| C．Having taken their places | D．Taking their seats |
This novel is set in the modern city, San Francisco, so once _______, it will be very popular.
| A．publishes | B．having published | C．publishing | D．published |
He has got himself into a dangerous situation ______ he is likely to lose control over the plan.
| A．where | B．which | C．where | D．why |
．－What are you going to do this afternoon?
－I’ll probably go for a walk later on __________ it stays fine.
| A．as far as | B．so long as | C．even if | D．as though |
----Now that you like the computer so much. Why not buy it?
---Well, I can’t afford ______computer.
| A．that expensive a | B．a that expensive | C． that an expensive | D．an expensive that |