I remembered ___ the door before I left the office, but forgot to turn off the lights.
| A．locking |
| B．to lock |
| C．having locked |
| D．to have locked |
.
Jane is said _______ an opera singer in her youth.
| A．being | B．to be | C．to have been | D．having been |
.
It is in Qingdao ______ you are going to pay a visit to ______ this kind of washing machine is produced.
| A．/; that | B．where; which | C．/; where | D．what; which |
.
The boy who was caught ________ in the examination room will be punished by the teacher.
| A．cheat | B．cheating | C．to cheat | D．cheated |
.
Last year the factory ______ over six million records.
| A．put forward | B．put down | C．put out | D．put through |
.
_______ you be interested, I will tell you the whole story.
| A．Would | B．Might | C．Should | D．Could |