问题
选择题
What hardworking people! They are often seen ______ in the fields even in such hot weather. [ ]
A. to work
B. work
C. working
D. worked
答案
答案：A
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What hardworking people! They are often seen ______ in the fields even in such hot weather. [ ]
A. to work
B. work
C. working
D. worked
答案：A