Parents often ask their children _____ their Internet friends because they may be in danger.
| A．to meet | B．to not meet | C．meeting | D．not to meet |
Remember to _________ the TV when you leave the room.
A. turn on B. turn down C. turn off
He is tall, _____ his son is short.
A. or B. while C. and
She has _____ this car for nearly ten years.
A. buy B. bought C. had
________the workers were quite tired, _______ they still went on working.
A. Because; / B. Although; but C. Although; /
_____ of the teachers are women in our school.
A. Second thirds B. Two threes C. Two thirds