I don't know________ they have passed the exam.
| A．if | B．what | C．which | D．Where |
This novel can make you laugh and cry at _______ same time.
| A．a | B．an | C．the | D．/ |
—Do you know_______?
—Yes. At about twelve. I was just about to go to bed.
| A．when he came back |
| B．when he will come back |
| C．when did you go to bed |
| D．whether he goes to bed late |
In ancient times, dogs were mainly ______helping people hunt( 打猎) .Now they are more useful-they can help the blinds, search for the bad eggs.
| A．bad for | B．used to | C．used for | D．good at |
—There are 60 students in my class and 44 of them use weibo veryoften.
—44? That means about_______of your classmates are weibo users, right?
| A．half | B．one third | C．two thirds | D．three quarters |
—______did Prince William's wedding（婚礼） last?
—It lasted for about 5 hours.
A. How far b. How long C. How soon D. How often