First aid can save a person’s life if ______ immediately and properly.A、perform

游客2024-01-19 24

问题 First aid can save a person’s life if ______ immediately and properly.

选项 A、perform
B、performing
C、performed
D、to perform

答案 C

解析补充完整的从句为if first aid is performed immediately and properly。

转载请注明原文地址:https://tihaiku.com/zcyy/3375983.html

相关试题推荐

随机试题

最新回复(0)

(Hard)(as)heworked,(but)Mr.Browncouldn’t(keep)theshopproperly.A、Hard