题目内容
As long as you stick to it,you’ll make progress ________.?
| A．in time | B．at a time | C．at one time | D．on time |
A?
in time及时,总有一天；at a time每次；at one time从前,曾经；on time按时。?
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题目内容
| A．in time | B．at a time | C．at one time | D．on time |