_____you have to do the job, you should try your best to do it well even though it may be very difficult for you.
| A．Since | B．While | C．Unless | D．Though |
____of danger in the street at night, she had to go home, with a friend ___ her.
| A．Warned; accompanied | B．Warning; accompanying |
| C．Having warned; accompanied | D．Having been warned; accompanying |
–How was your interview with the famous basketball player—Yao Ming?
--I was quite nervous at first, but his warm smile put me____.
| A．in action | B．at ease | C．on work | D．on watch |
John once worked in a remote mountain village school, which is ____only on foot.
| A．acceptable | B．accessible | C．available | D．appropriate |
The president was so absorbed in his work that not a sound ______.
| A．did she dare to make | B．dared she to make |
| C．she dared make | D．she did dare to make |
–Guess what! Alice has failed in the exam.
– ____? She is second to none in English in our class.
| A．How is it | B．How come | C．What | D．What is it |