______ worries me that my daughter plays with her cellphone for a long time every day.
| A.It | B.What | C.This | D.That | 
Our monitor requested that ________.
| A.all the class studied more carefully the problem | 
| B.the problem was more carefully studied | 
| C.with great care the problem could be studied | 
| D.all the class study the problem more carefully | 
In fact___ is a hard job for the police to keep order in an important football match.
| A.this | B.that | C.there | D.it | 
The reason _____ he was driving his car so fast was _____ he would be late.
| A.because, that | B.why, because | 
| C.for which, that | D.that, that | 
But for their help, we ______ the program in time.
| A.can not finish | B.will not finish | 
| C.had not finished | D.could not have finished | 
Every pupil is _______ to be in his classroom at 7 o’clock in the morning, which is the rule of the school.
| A.likely | B.supposed | C.allowed | D.depressed |