She didn't answer the phone.She ___ be asleep.
| A．couldn't | B．mustn’t | C．might | D．had to |
The building is carefully designed so that everyone can leave the building safely if an accident ________.
| A．increases | B．raises | C．rises | D．arises |
Your desk is crowded with too many unnecessary things, including used papers and books. You’s better ______ some of them.
| A．remain | B．recover | C．remove | D．replace |
As is universally recognized , our strong sense of national ________ has been shaped by our history.
| A．identity | B．accent | C．difference | D．power |
It was a ________ that the whole family survived the earthquake.
| A．mercy | B．trick | C．loss | D．incident |
— Wow，you won first in the story-telling competition. Fantastic!
— ______ !
| A．Give me five | B．Congratulations |
| C．That’s all right | D．Forget it |