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

—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

—How many students passed the math test?

    — ________, for it was too much for them.

    A. Nobody           B. A few            C. None             D. No one

I never doubt ________ he was dedicated to our firm.

    A. that             B. whether          C. if               D. what

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 

Every minute is made full use of ________ our lessons.

    A. studying         B. to study         C. study            D. being studied

I agree with most of what you said, but I don't agree with ________.?

    A. nothing          B. anything ?      C. something        D. everything

Mary couldn’t make herself ________ attention to because her classmates made so much noise.

    A. pay              B. to pay           C. paying           D. paid

He suggested the person referred ________ put into prison.

    A. is               B. be               C. to be            D. should be

    —Well. I do think the rabbit is a beautiful, gentle animal which can run very fast.

    — ________.

  A．So it is                               B．So is it         C．So does it   D．So it does