【华慧考博】考博英语每日一练（10.30）考博加油！
1. The introduction of gunpowder gradually made the bow and arrow______, particularly in Western Europe.
A. obscure
B. obsolete
C. optional
D. overlapping
2. In ________ of Mr. Mainwaring’s years of service, the company presented him with a gold watch.
A. contradiction
B. appreciation
C. confrontation
D. apprehension
【考博英语句子补全】
1. We _________ _________ _________ our English teacher.
我们熟悉我们的英语老师。
2. Their friendship has_________ _________ .
他们的友谊破裂了。
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