. Mary said it was very important to her that she _____ her work.
| A．is liking | B．like | C．likes | D．liked |
Bad program on TV may have bad _____ on children.
| A．affect | B．effect | C．power | D．control |
Was it in 1996 _____ the American astronaut succeeded _____ landing on the moon?
| A．that; in | B．when; on | C．what; on | D．when; in |
The news _____ the football team won the game made us happy.
| A．that | B．which | C．in which | D．what |
Only when class began _____ that he had left his book at home.
| A．will he realize | B．he did realize |
| C．did he realize | D．should he realize |
The student couldn’t ______ what the teacher was trying to explain.
| A．recognize | B．grasp | C．study | D．achieve |