when you have been turned downWhen you have been turned down______,you’ll need a lot of courage to go on your work.A in time B at one time C at a time D time and again

when you have been turned downWhen you have been turned down______,you’ll need a lot of courage to go on your work.A in time B at one time C at a time D time and again
when you have been turned down
When you have been turned down______,you’ll need a lot of courage to go on your work.
A in time B at one time C at a time D time and again

when you have been turned downWhen you have been turned down______,you’ll need a lot of courage to go on your work.A in time B at one time C at a time D time and again
D.如果你一次又一次受到挫折,你需要巨大的勇气才能继续你的工作.

B

B.at one time曾经。
句意为：如果你曾经被拒绝过，那么你需要很大的勇气继续你的工作。