单项选择题

Scientists are expected to carry out thoroughgoing studies to back up claim's made concerning new drugs.

A．support
B．elevate
C．investigate
D．challenge
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单项选择题
Man: Don't forget to go to see the doctor. Woman: Oh, it's just a scratch. Q: What does the woman imply
A．She will not see a physician.
B．She will scratch her wound.
C．She forgot the doctor's address.
D．She forgot about the scratch.
单项选择题
Man: I knew Laurie played the piano, but I didn't know she played the guitar. Woman: Neither did I. It seems she just picked it up on her own, over the summer. Q: What does the woman mean
A．Laurie doesn't have much musical talent.
B．Laurie taught herself to play the guitar.
C．Laurie wants to play music with other people.
D．Laurie has a summer job playing guitar.
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