Volunteering our time to help people ________ a good way to _______our free time.
| A．be; spend | B．are; cost | C．is; spend | D．will; cost |
—Excuse me, how can I get to the South Hill?
— Oh, ________ of these buses will take you there, you can only take a taxi.
| A．all | B．both | C．none | D．nothing |
In winter people usually keep flowers in their houses to them from the cold weather.
| A．produce | B．provide | C．protect | D．plant |
Your ________ is so sweet, you will be a great singer in the future.
| A．sound | B．noise | C．smile | D．voice |
My father was reading a book ________ I was doing my homework.
| A．before | B．after | C．when | D．while |
The snowstorm brought disaster to ________ people.
| A．thousands of | B．thousands | C．thousand of | D．thousand |