单项选择题

What does the speaker say about sleeping pills

A．they might eventually cause you to lose sleep．
B．They help produce a neurotransmitter in the brain．
C．You must not drink milk if you take them．
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单项选择题
Where did the man lost the wallet
A．In a taxi.
B．In Dr. Baker’s office.
C．It was unclear．
单项选择题
Which of the following is true
A．Churchill liked the portrait．
B．His wife liked modern art．
C．Neither Churchill nor his wife like the portrait．
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