| The moment the 28th Olympic Games ____ open, the whole world cheered. |
A. declared B. have been declared C. have declared D. were declared |
| Green products are becoming more and more popular because they are environmentally ______. |
A. friendly B. various C. common D. changeable |
| — How long do you think it will be _____ China sends a manned spaceship to the moon? — Perhaps two or three years. |
A. when B. until C. that D. before |
| Ladies and gentlemen, please fasten your seat belts. The plane _____. |
A. takes off B. is taking off C. has taken off D. took off |
| — Who called me this morning when I was out? — A man calling _____ Robert. |
A. him B. himself C. his D. 不填 |
| I was on the highway when this car went past followed by a police car. They ______ at least 150 km an hour. |
A. should have been doing B. must have been doing C. could have done D. would have done |
| — You know, Bob is a little slow _____ understanding, so… — So I have to be patient _____ him. |
A. in; with B. on; with C. in; to D. at; for |
| His idea of having weekly family meals together, which seemed difficult at first, has _____ many good changes in their lives. |
A. got through B. resulted from C. turned into D. brought about |
| Catherine bought a postcard of the place she was visiting, addressed _____to _____ and then posted it at the nearby post office. |
A. it; her B. it; herself C. herself; her D. herself; herself |
| — What are you going to do this afternoon? — I will probably go for a walk _____ it stays fine. |
A. unless B. so long as C. even if D. as if |