—I drove to Zhuhai for the air show last week.
—Is that__________you had a few days off?
| A.why | B.what | C.when | D.where | 
He pretended _______ me when we met in the street.
| A.not to know | B.not to be knowing | 
| C.not having known | D.not knowing | 
Their parents’ advice is ___________. Which one is NOT right?
| A.worthy of being considered | B.worthwhile to be considered | 
| C.worth considering | D.worthy to be considered | 
They raised a lot of money and ________ a school for the children in the mountain area.
| A.took up | B.built up | C.made up | D.set up | 
Sam said the work would be done by December, _____ personally I doubt very much.
| A.it | B.that | C.when | D.which | 
John thinks it won’t be long _________ he finishes the tough work.
| A.when | B.after | C.since | D.before |