Quizzes are given every other week to make sure that the students ______ keeping in pace with what is going on in the class.

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问题 Quizzes are given every other week to make sure that the students ______ keeping in pace with what is going on in the class.

选项 A、are to be
B、will be
C、shall be
D、are

答案D

解析 本题考查动词时态。在that从句中,谓语表示的动作与what从句的动作is going on...同时发生,即学生的学习与课堂教学保持同步,所以D是正确答案。A、B、C三个选项都是将来时,应排除。本句中, every other week每隔一星期;make sure确保。这句话的意思是:每隔一周进行的小测试是确保学生的学习与课堂教学同步。
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