题目内容
-Do you often hear John ________ in his room?
-Yes.Listen! Now we can hear him ________ in his room.
[ ]
A.sing; to sing
B.singing; singing
C.sing; singing
D.to sing; singing
答案:C
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题目内容
-Do you often hear John ________ in his room?
-Yes.Listen! Now we can hear him ________ in his room.
A.sing; to sing
B.singing; singing
C.sing; singing
D.to sing; singing