They ________ the plan for almost three hours, but they haven’t reached any conclusion.
Our monitor requested that ________.
In fact___ is a hard job for the police to keep order in an important football match.
The reason _____ he was driving his car so fast was _____ he would be late.
But for their help, we ______ the program in time.
Every pupil is _______ to be in his classroom at 7 o’clock in the morning, which is the rule of the school.