Which indirect speech is wrong?
A. "I like apples," Tom said.Tom said he liked apples.
B. "I don't like action films," Lingling said.Lingling said that she didn't like action films.
C. He said, "I am here."He said that he was here.
D. My mother told me, “You should finish your homework first, then you can play with your friends.”My mother told me that I should finish my homework first and then I could go out and play with my friends.
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He asked, "Where are you toget off, John?"He asked John where _____________ get off.
A. was he to
B. he was to
C. does he to
D. would he to
Which sentences are right?
A. Can you tell me where is the hospital?
B. Can you tell me wherethe hospital is?
C. I don't know whether does he speak Chinese.
D. I don't know whether he speaks Chinese.
下列化合物能产生旋光异构体的是（）
A. CH3CH2CH2CH3
B. CH3CH＝CHCH3
CH3CH2CH(OH)CH3
D. CH3CH2CH2CHO
下列说法正确的是（）
A. 手性分子一定具有旋光性
B. 含有手性碳原子的化合物一定具有旋光性
C. 内消旋体是一对对映体的等量混合物
D. 构型为（2R，3S）的化合物一定是内消旋体
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