My father was reading a newspaper while my mother ______ dinner.

are you still here Everybody hasgone to attend the lecture by the president.— Oh, I about it!

The boy enjoys ________ football after school. It makes him ________ happy.

The factory ___ I am going to is the place ___ my mother used to work many years ago

The reason ______ his coming to China is______ he wants to study in China．