大卫，该睡觉了。
A. It’s time to go to bed, David.
B. Go to bed, David.
C.Shall we go to bed, David?
相关试题
选出不同类的选项。
(1)A. dogB. lionC. animal
(2)A. cute B. catC. lovely
(3)A. fatB. elephant C. horse
(4)A. lion B. catC. hot dog
(5)A. bird B. tigersC. monkeys
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