2. 外语
  3. The time has come________we can make extensive use of nuclear energy.

The time has come________we can make extensive use of nuclear energy.

admin2022-06-13  14
问题 The time has come________we can make extensive use of nuclear energy.
选项 A、when
B、while
C、as
D、since
答案A
解析 句意：我们可以广泛利用核能的时候到了。先行词是the time，且定语从句“________ we can make extensive use of nuclear energy”缺少时间状语，所以用when引导，故选A。
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