问题
选择题
The boy is running impatiently here and there as if ____ something lost on the sports ground. [ ]
A. to search
B. searching
C. searching for
D. to search for
答案
答案：C
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The boy is running impatiently here and there as if ____ something lost on the sports ground. [ ]
A. to search
B. searching
C. searching for
D. to search for
答案：C