I don't believe we've met before, I must say you do look familiar.
| A．therefore | B．although |
| C．since | D．unless |
The man showed us such a heavy stone ________ no one could lift it.
| A．that | B．as | C．which | D．and |
He smiled politelyMary apologized for her drunken friends.
| A． | as | B． | if |
| C． | unless | D． | though |
I _______ to the party if I________tomorrow.
| A．will go; will be invited |
| B．will go; am invited |
| C．go; will invite |
| D．go, have been invited |
______ difficult the problem was, he tried his best to solve it.
| A．No matter | B．Although | C．Whatever | D．However |
（2012湖南） ____ I always felt I would pass the exam, I never thought I would get an A.
A. While B. Once C. If D. Until
It was wrong to cut down the old tree which dates back to 1915, _______ the reason．
| A．whatever | B．wherever | C．whenever | D．however |
24.—I don’t think I need to buy that toy penguin—it’s for kids.
—__________you don’t have kids, buy it anyway because it looks good.
| A．As if | B．Even if | C．In spite of | D．Even so |
It will be long she sees Mr. White again at Beijing, business has just started in Switzerland.
| A．after; who | B．since; who |
| C．when; whose | D．before; whose |
__________ you have made a promise, you should carry it out.
| A．Once | B．Until | C．For | D．While |
Although Rio knew little about marketing, he succeeded ______ other more well-informed managers failed.
| A．as | B．unless | C．what | D．where |
What impresses me most is________he appears in front of others，he wears a sincere and charming smile.
| A．what | B．which |
| C．that where | D．that whenever |
—Did you return Fred's call?
—I didn't need to ________ I'll see him tomorrow.
| A．though | B．unless | C．when | D．because |
The famous scientist grow up________ he was born and in 1930 he came to Shanghai.
| A．when | B．in which | C．where | D．wherever |
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