—What do you think of the news in today's newspaper?
—We shouldn't ________ the trouble of helping others only because what we do may invite trouble.
| A．knock off | B．take off |
| C．keep off | D．break off |
--- -When did he get his first novel published?
---- It was in 2008 ____ he was still in high school.
| A．that | B．since | C．when | D．which |
Nobody can explain the mystery ____ he suddenly disappeared.
| A．why | B．what | C．whether | D．which |
It suddenly___ to me that we could use the computer to do the job.
| A．stroke | B．occurred | C．happened | D．saw |
Though she _______for a moment, she finally went in and asked to see a dress that was in the window.
| A．dared | B．nerved | C．wondered | D．hesitated |
The survey shows that a large number of teenagers are ________ cigarettes nowadays.
| A．devoted to | B．related to | C．connected to | D．addicted to |