“I don't think it's my ________that the TV blew up. I just turned it on，that's all，”said the boy.
| A．error | B．mistake | C．fault | D．duty |
People try to avoid public transportation delays by using their own cars and this ______ creates further problems.
| A．in short | B．in turn | C．in doubt | D．in case |
. A notice was____in orderto remind the students ofthe changed lecture time.
| A．sent up | B．given up | C．setup | D．put up |
. In our class, when the bell rang and the teacher closed his book, it was a______for everyone to stand up.
| A．mark | B．chance | C．signal | D．measure |
Now, in our country free medical treatment covers sickness of mind as well as ______sickness.
A. o
rdinary B. average C. regular D. normal
The biggest whale is ______ blue whale, which grows to be about 29 meters long—the height of ______ 9-story building.
| A．the; the | B．the; a | C．a; the | D．a; a |