Every minute is made full use of ________ our lessons.
A. studying B. to study C. study D. being studied
After the summer vacation, the professor, together with his fellow teachers, ______ the scientific experiment
A. goes down B. go down C. gets down to D. get down to
I never doubt ________ he was dedicated to our firm.
A. that B. whether C. if D. what
—How many students passed the math test?
— ________, for it was too much for them.
A. Nobody B. A few C. None D. No one
—what do you think of the matter?
—Don’t you remember I have already ________ that it was troublesome?
A. made it clear B. made clear C. took it for granted D. made sure
As a result of destroying the forest, a large ________ of desert ________ covered the land.
A. number; has B. quantity; has C. number; have D. quantity; have
