题目内容
Parents should see to it _______ their children form the habit of brushing their teeth every day.
| A．this | B．that | C．whether | D．if |
B
试题分析：考查从句，that引导的同位语从句，对it进行解释说明，句子意思“父母应该料理他们的孩子天天刷牙的习惯”
点评：从句是高考常考内容之一，需要考生能够分析理解句子的结构，熟记连词关系词的句法功能。
即学即练：You were rude to your sister, _____you should make an apology to her.
A. whom B. for which C. for whom D. which
选B
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