Failure is one thing; it counts to find out　　　your faults lie.

(2011·重庆)—Have you seen the film Under the Hawthorn Tree?—Of course，I have.It was in our village ________ it was made.

—Henry, the phone is ringing. Do you want me to go? —No ,sit still.    .

______ is often the case in science, there is no simple answer

—Can you work out the problem?   —I can’t ______your explain how to do it.