At discussion, Jack ____ an idea that they should bring down the price of the bicycles.
A. came about B. came up C. came out D. came up with
Do you know the waste material can be made use ________ this kind of the toy?
A. of producing B. to produce C. to producing D. of to produce
She understood what I was talking about, ____ it was the first time we had spoken together.
A. whether B. as if C. even if D. Since
Mr. Black _____ for Shanghai in a few days. Do you know when the earliest plane ____on Sunday?
A. leaves; takes off B. is leaving; takes off
C. is leaving; is taking off D. leaves; is taking off
That hero who died in the war was so brave that he never _____ to the enemies until death.
A. gave up B. gave out C. gave away D. gave in
The reason _____he was absent was _____ he was ill and unable to go to school.
A. which; that B. why; because C. which; because D. why; that
