He practiced as often as he could _____ his spoken English. [ ]A. improve B. improving C. to improve

题目简介

He practiced as often as he could _____ his spoken English. [ ]A. improve B. improving C. to improve

题目详情

He practiced as often as he could _____ his spoken English.
[     ]
A. improve
B. improving
C. to improve
D. improved
题型:单选题难度:中档来源:模拟题

答案

C

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