____ he was not rich enough to buy whatever he wanted, Edison decided to make his new laboratory the best.
A. Although B. Since C. When D. As
We still cannot persuade him to give up smoking ____ hard we tried.
A. so B. how C. though D. however
____ we went those days when we were in the countryside, we were warmly welcomed.
A. There B. Where C. Wherever D. Whatever
A ____ road goes ____ from our village to the center of the town.
A.straight;straightly B.straightly;straightly
C.straightly;straight D.straight;straight
When his mother came in, Charlie pretended _________.
A. sleep B. sleeping C. to sleeping D. to be sleeping
The kid is not ______ to work out the problem, for it’s too difficult.
A. likely B. perhaps C. maybe D. probable
