问题
选择题
Don't try to do everything at once. Take it a bit __________. [ ]
A. at times
B. at that time
C. at all times
D. at a time
答案
答案：D
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Don't try to do everything at once. Take it a bit __________. [ ]
A. at times
B. at that time
C. at all times
D. at a time
答案：D