The tragedy of the innocent young Brazilian boy killed by the British police has put the British police in a difficult________.
| A．occasion | B．case | C．situation | D．background |
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 |