It ______ be the postman at the door. It’s only six o’clock.
| A．mustn’t | B．can’t | C．won’t | D．needn’t |
Their sudden attack made us more ________ of the danger around us.
| A．familiar | B．particular | C．aware | D．doubtful |
Miss Li ___ as a secretary for five years in the company, and now she is general manager of it.
| A．has served | B．had served | C．served | D．serves |
What a(n) _______ it is that the new couple were born in the same year and on the same day.
| A．acquaintance | B．consequence | C．circumstance | D．coincidence |
So much progress _____ in the past few months that she now has no difficulty in making herself understood in English.
| A．did she make | B．has she made | C．she has made | D．she made |
Much to my, I’m unable to accept your kind invitation.
| A．fault | B．duty | C．guide | D．regret |