单选题：Whenthepositionbecame__________,Charleswasappointedtofillitb

题目内容：

Whenthepositionbecame__________,Charleswasappointedtofillitbythecompany. A．valid
B．vague
C．vain
D．vacant

参考答案：

答案解析：

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第55题答案是________ A．you B．someone C．perhaps D．maybe

分类：成人英语三级题型：单选题

第52题答案是________ A．responsibly B．respectfully C．respectively D．respectably

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When__________aboutsubstances,thescientistsfinditconvenienttoclassifythemintoso

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Maybeeachcomputershouldcomewiththewarning:forallthehelpthiscomputermayprovide,i

分类：成人英语三级题型：单选题

I'mafraidwehavetocallthewholedealoffifyoustill__________youroriginalquotation.

分类：成人英语三级题型：单选题