—Excuse me, could you tell me where the post office is?
—__________, but I’m a stranger here．
| A．I’m not sure | B．I’m sorry |
| C．That’s righ | D．I’m afraid not |
A scientific report has found that snow and ice on Africa’s highest mountain Kilimanjaro ______rapidly and could vanish within 20 years.
| A．has been melted | B．will melt |
| C．is melting | D．was being melted |
–Frank failed the driving test again.
--______ He practiced a lot and was quite confident.
| A．What if? | B．How come? | C．So what? | D．Why not? |
______________ that my dearest friend would play a trick on me in front of all my students.
| A．Never I thought | B．Never did I think |
| C．I thought never | D．Never thought I |
More and more Chinese people follow the practice ______ they will travel to various scenic spots to enjoy the scenery in their leisure time.
| A．whether | B．which | C．where | D．that |
Do you know ______________ had reported the accident to the police?
| A．who it was that | B．who was it that | C．it was who that | D．that it was who |