Darwin counted 225 flowering plants, __________ he collected and brought home 193.
| A．which | B．for which | C．in which | D．of which |
The leader is losing ground as the rest of the runners _____
| A．accelerate | B．accumulate | C．arise | D．advance |
---I have _______ to apologize for the slight damage to your recorder.
--- Never mind.
| A．after all | B．in the first place | C．at first | D．as usual |
-----What _____?
-----I______my key and can't open the door.
| A．happened, lost | B．has happened, lost |
| C．happens, have lost | D．has happened, have lost |
-Now that you like the personal computer very much, isn't it a good idea to get one?
-Well, I'd like to but I can't afford _____ computer at present.
| A．that expensive a | B．a such cheap | C．that an expensive | D．so cheap |
I___ to have another try if I get another chance.
| A．have been meaning | B．mean | C．am meanin | D．have meant |