单项选择题

______ is being studied now in that research center.

A．That this is made from
B．What is this made from
C．This is made from
D．What this is made from
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单项选择题
What’s Lee’s hotel room number
A． The No. 311 on the second floor.
B． The No. 311 on the third floor.
C． The No. 211 on the second floor.
单项选择题
What would the speaker’s father always do after eating in the restaurant
A． Have a good sleep.
B． Eat something else.
C． Take a shower.
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