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Mary and I have been close friends ______ we met each other 10 years ago.

A．when            B．since             C．until             D．a(chǎn)s

Hurry up. I_____ for Korea to visit my uncle; The plane_____ at 10:00.

A．a(chǎn)m leaving; will leave                    B．leaves; is leaving

C．a(chǎn)m leaving; leaves                       D．will leave; is leaving

John received an invitation to dinner, and with his work______, he gladly accepted it.

A．finished           B．finishing           C．having finished     D．was finishing

The boy was very sick, but he managed to ______.

A．pull off           B．pull out           C．pull through       D．pull up

We missed the beginning of the football match. When we got to the stadium, the match ______.

A．would start        B．has started         C．had started        D．was starting

They were surprised that a child should work out the problem____ they themselves could not.

A．once             B．unless            C．while             D．if

It is one of the funniest things____ on the Internet so far this year.

A．finding           B．being found        C．to find            D．found

Personally I think the ______ Andrew drew from his simple experiment is not scientific.

A．conclusion        B．decision           C．information        D．invention