题干
Don't try to do everything at once. Take it a bit ________ .
A：at that time
B：from time to time
C：at a time
D：at all times
答案(点此获取答案解析）
C
Don't try to do everything at once. Take it a bit ________ .
A：at that time
B：from time to time
C：at a time
D：at all times
