Having been ill in bed for nearly a month ,he had a hard time________ the exam.
| A.pass | B.to pass | C.passed | D.passing | 
Since the beginning of the vacation, I_____ across the country, and my next stop is the Wuyi Mountain.
| A.had travelled | B.will  travel | 
   C.have been travelling | D.was travelling | 
Attention, please, everybody! Please stay_____ while I take a photograph of you.
| A.still | B.calm | C.quiet | D.alive | 
We should realize that there are other things that society should value besides high marks, _____ honesty and responsibility.
| A.for example | B.namely | C.such as | D.that is | 
What should we use for power when all the oil in the world has_____ ?
| A.run out of | B.used up | C.given out | D.given off | 
---Hey! Everyone in the office was at the dinner party in honor of Mr. Charles except you. What happened?
 ---I ______ after Mike, my colleague. He was badly ill.
| A.have looked | B.was looking | C.would look | D.had looked |