The boy often ( ) study hard, but he can not put into practice.

The boy doesn't study hard. So he often f_______ ( )exams.

Tom wants to put what he has learnt in class into practice. It can be seen a .

A、

esteem need 

physiological need

self-realization need

social need

________ is often the case, he didn't study hard and failed to pass the test.

A、What
B、Which
C、It
D、As

O'Neal works hard.

A、sweated
B、to be sweated
C、sweating
D、being sweated