before_______a shower ,he drank a bottle of milk A have B having C has D had

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before_______a shower ,he drank a bottle of milk A have B having C has D had

before_______a shower ,he drank a bottle of milk A have B having C has D had
before_______a shower ,he drank a bottle of milk A have B having C has D had

before_______a shower ,he drank a bottle of milk A have B having C has D had
选 B
before是介词 后面跟动词的ing形式

B

B
before是介词,后面跟动名词形式

洗澡之前,他喝了一瓶牛奶.

Had,过去时 望采纳谢谢