_____ Sandy was playing the piano, someone knocked at the door.[ ]A: While B: Before C: After D: Unt

题目简介

_____ Sandy was playing the piano, someone knocked at the door.[ ]A: While B: Before C: After D: Unt

题目详情

_____ Sandy was playing the piano, someone knocked at the door.

[     ]

A: While
B: Before
C: After
D: Until
题型:单选题难度:中档来源:期末题

答案

A

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