| The girl had hardly rung the bell _____ the door was opened suddenly, and her friend rushed out to greet her. |
A. before B. until C. as D. since |
| Lots of rescue workers were working around the clock, _____ supplies to Yushu, Qinghai province after the earthquake. |
A. sending B. to send C. having sent D. to have sent |
| Stephen Hawking believes that the earth is unlikely to be the only planet _____ life has develop gradually. |
A. that B. where C. which D. whose |
| Mothers holding jobs outside the home should have _____ schedules to make it easier to care for their children. |
A. heavy B. smooth C. flexible D. complex |
| Those who suffer from headache will find they get _____ from this medicine. |
A. relief B. safety C. defense D. shelter |
| — Volunteering is becoming _____ popular in China. — Yeah, people are now aware that helping others is helping themselves. |
A. naturally B. successfully C. splendidly D. increasingly |
| When you introduce me to Mr. Johnson, could you please say _____ for me? |
A. everything B. anything C. something D. nothing |
| Mr. Black is very happy because the clothes made in his factory have never been _____. |
A. popular B. more popular C. most popular D. the most popular |
| Linda, make sure the tables _____ before the guests arrive. |
A. be set B. set C. are set D. are setting |