He hurried home, never once looking back to see if he_________.
| A． |
was being followed |
B． |
was following |
C． |
had been followed |
D． |
followed |
I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.
| A． |
should leave |
B． |
must have left |
C． |
might leave |
D． |
could have left |
The gold medal will be awarded to ___________ wins the first place in the bicycler.
| A． |
whomever |
B． |
wherever |
C． |
whoever |
D． |
whatever |
It took him a long time to___________ the skills he needed to become a good dancer.
| A． |
display |
B． |
acquire |
C． |
teach |
D． |
test |
I need a new passport so I will have to have my photograph___________.
| A． |
taking |
B． |
taken |
C． |
being taken |
D． |
take |
The__________ that there is life on other planets in the universe has always inspired scientists to explore the outer space.
| A． |
advice |
B． |
order |
C． |
possibility |
D． |
invitation |