A study shows that walking fast in your old age is a ______ that you will live a long life.
| A．sign | B．mark | C．symbol | D．signal |
The big snow lasted five days.People trapped in the station were badly in_______ of food and water.
| A．hope | B．search | C．want | D．charge |
In some places in the South of China, ____car has already become___ popular means of transportation.
| A．a; the | B．不填; a | C．the; a | D．the; the |
Yao Ming as well as his teammates ______ hard to win honor for China these years.
| A．work | B．are working | C．has been working | D．Works |
.______ sunshine and rainfall ______ a good harvest of fruits and begetables this year.
| A．A large quantity of ; promise | B．A large number of; promise |
| C．A large quantity of; promises | D．Large quantities of; promises |
I think ________ good knowledge of English is ________ great help when you are traveling around the world.
| A．不填;a | B．a; a | C．a; the | D．a; 不填 |