I waited for her at the bus station for two hours, but she never______.
| A．turned on | B．turned to | C．turned up | D．turned down |
Vaccination(接种疫苗) against A H1/N1 flu will begin across Britain next week, _____a sharp increase in the death cases.
| A．to follow | B．followed | C．following | D．follows |
It’s believed ______40% of stars, like the sun, may have planets that orbit them.
| A．as many as | B．as much as | C．many more | D．much more |
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 |