We all know laws to discourage the use of plastic bags _______ in many parts of the world.
| A．passed | B．have passed | C．had been passed | D．have been passed |
I agree with most of what you said, but I don't agree with ________.
| A．nothing | B．anything | C．something | D．everything |
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 |