Who can you turn to in time of danger, it not ____.
____we will be admitted to an ideal university partly depends on our learning attitudes.
Han Mei, I would appreciate ______ you could give me some suggestions on GRE test.
You could have seen Fang Zuming________ yesterday morning.
The officer gave orders that anyone_____ a gun should be reported to the police station.
______for a long time, but he tried his best to make up for what he missed.