—Why do you prevent them______playing computer games?
---Because they have a bad______on teenagers.
| A．from,effect | B．from,affect | C．to,effect | D．to,effect |
---Listen! Kate is singing in the classroom.
----It_____be Kate. She has gone to the Library.
| A．can | B．can’t |
| C．must | D．mustn’t |
The songs of Coco sound________. Her CDs sell_______.
| A．good; well | B．well; good |
| C．good; good | D．well; well |
Bob has made a lot of promises, but______of them have been carried out.
| A．none | B．each |
| C．either | D．neither |
Mary did all ______she could to get on well_______her classmates.
| A．which; with | B．that; / |
| C．that; with | D．/; / |
She hates people_______don’t help others when they have trouble.
| A．whose | B．/ | C．whom | D．who |