You will see to ________ the engine does not get out of order.

You will see to ________ the engine does not get out of order.
A、 it that
B、 that
C、 which
D、 whether
【正确答案】：A

上一篇： ________ that John should have passed the examination.

下一篇： He was warned _______ he should make the same mistake again.