It’s high time we______some serious efforts to help enlighten school-age children on ethical principles and moral values, as it

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问题 It’s high time we______some serious efforts to help enlighten school-age children on ethical principles and moral values, as it is unwise for parents and teachers to focus only on students’ academic achievements.

选项 A、began
B、had to begin
C、shall begin
D、begin

答案A

解析 虚拟语气题。It’s(high)time that…句型表示“该是做……的时候”,从句谓语动词用过去式或“should(不可省略)+do”。例如:It is high time that you went to school.你该去上学了。
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