题目内容
Doctors are concerned that the children ________ too much time in front of the TV don’t get enough exercise.
- A.those spend
- B.who spend
- C.to spend
- D.spend
B
先行词是the children,空格处的关系词引导一个定语从句,而先行词在定语从句中作主语。故选择B项。
先行词是the children,空格处的关系词引导一个定语从句,而先行词在定语从句中作主语。故选择B项。
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