The course normally attracts 20 students per year, ___________ up to half will be from abroad.
| A．in which | B．for whom | C．with which | D．of whom |
—Why do many people keep dogs as pets?
—Because they are our ____ friends and they never desert their masters.
| A．wise | B．brave | C．loyal | D．handsome |
The survey ____ in our school last month shows that about three percent of the students are addicted to the Internet games.
| A．conducted | B．was conducted | C．conducting | D．to be conducted |
You _____ read a book in the sun—it'll do harm to your eyes．
| A．couldn't | B．wouldn't | C．needn't | D．mustn't |
A fire broke out in the building at 7:30 on Tuesday morning, ____ in the death of a young girl.
| A．having resulted | B．resulted | C．being resulted | D．resulting |
—I'll call you ______ I arrive in Shenzhen．
—Thanks, and good luck．
| A．while | B．until | C．as | D．once |