Why did you take a taxi____you could come here by bus?
| A．while | B．unless | C．when | D．until |
—Do you still remember the first time you _______with a girl?
—Not exactly, but I remember it was a Sunday.
| A．talked | B．had talked | C．have talked | D．were talking |
There are altogether fifty-four students in our class, _____ is a new comer from a faraway
mountain village.
| A．the most diligent of who | B．but the most diligent of whom |
| C．the most diligent of them | D．of whom the most diligent |
If you think the price of pork is too high, you _____ as well buy some beef. It depends on you!
| A．should | B．will | C．would | D．may |
—Why didn’t you remind him of the possible danger?
—But what ______ otherwise? He never listens to me.
| A．could I do | B．could I have done | C．should I do | D．must I have done |
How many times have you found yourself arriving at school to start your day, only ________ that you left your homework at home?
| A．having discovered | B．discovering | C．to discover | D．Discover |