Of all _____ reasons for his decision to study abroad, his father’s advice was ____ most important one.
| A．the; a | B．不填; a | C．不填; the | D．the; the |
Every boy and every girl ________ pleased when they saw Shenzhou VI was sent up to space.
| A．is | B．was | C．are | D．were |
—How long have you been in this office?
—Just a few minutes. My cousins_______here together with me.
| A．have walked | B．had walked |
| C．walked | D．have been walking |
In America, _____ car is _____ popular means of transportation.
| A．the; a | B．a; the | C．the; the | D．the; / |
Bill is not a fast runner and he doesn't have a chance of winning the marathon, but he will _____ the race even if he finishes last.
| A．keep on | B．keep to | C．stick out | D．stick to |
The current political _____ of our country is favorable for foreign investments.
| A．climate | B．weather | C．state | D．occasion |