the safety of gas, the government has checked the city’s gas supply system thoroughly.
A. To ensure
B. Ensuring
C. Having ensured.
D. To have ensured
the safety of gas, the government has checked the city’s gas supply system thoroughly.A. T
答案:2 悬赏:10 手机版
解决时间 2021-04-08 03:24
- 提问者网友：眉目添风霜
- 2021-04-07 17:15
最佳答案
- 五星知识达人网友：你可爱的野爹
- 2021-04-07 18:48
(答案→)A. To ensureB. EnsuringC. Having ensured.D. To have ensured解析：可联系答.案.网客服索取。
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- 1楼网友：蓝房子
- 2021-04-07 19:49
哦，回答的不错
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