—Where is Peter? —He _____ to Shanghai.
| A．went | B．had gone | C．has been | D．has gone |
That is the only way we can imagine __________ the overuse of water in students' bathrooms.
| A．reducing |
| B．to reduce |
| C．reduced |
| D．reduce |
I have a lot of readings __________ be-fore the end of this term.
| A．completing |
| B．to complete |
| C．completed |
| D．being completed |
We were astonished __________ the temple still in its original condition.
| A．finding |
| B．to find |
| C．find |
| D．to be found |
With Father's Day around the corner, I have taken some money out of the bank __________presents for my dad.
| A．buy |
| B．to buy |
| C．buying |
| D．to have bought |
The ability __________ an idea is as important as the idea itself.
| A．expressing |
| B．expressed |
| C．to express |
| D．to be expressed |