Theofficialwaslookingatapostcardsadly____hisworkmatecamein.[ ]A.while B.when C.afterD.before -八年级英语

题目简介

Theofficialwaslookingatapostcardsadly____hisworkmatecamein.[ ]A.while B.when C.afterD.before -八年级英语

题目详情

The official was looking at a postcard sadly ____ his workmate came in. 
[     ]
A. while
B. when
C. after
D. before
题型:单选题难度:中档来源:同步题

答案

B

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