The first use of atomic weapons was in 1945, and their power increased enormously ever since.
A. is
B. was
C. has been
D. had been
The first use of atomic weapons was in 1945, and their power increased enormously ever si
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解决时间 2021-04-04 13:26
- 提问者网友：棒棒糖
- 2021-04-04 01:26
最佳答案
- 五星知识达人网友：醉吻情书
- 2021-04-04 02:30
A. isB. was(答案→)C. has beenD. had been解析：句中的since为副词，表示“从过去某时起一直到现在”，它通常要与现在完成时连用。
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- 1楼网友：千杯敬自由
- 2021-04-04 03:24
对的，就是这个意思
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