The student’s behavior cost the teacher asteepless night . He never thought his student ______ computer games for awhole class .

I saw your uncle take a taxi to the airport. Why didn’t you drive him there— I ________. But my car ________.

Modern China is experiencing a completely new period ________ respect for science and creativity has become the guiding principle of society.[ ]

The man fears ____ in the river because he can’t swim.

do you often play with at weekends — My best friend, Mary.