As we all know, the director as well as the workers ______ responsible for the protection of the old buildings.
| A．were | B．are | C．is | D．was |
—What do you think about smoking?
—Well，just as someone puts ________，smoking kills.
| A．this | B．it | C．that | D．one |
Mr Blark，________ who we all admire，is a kind but strict teacher.
| A．the one | B．it | C．one | D．as |
Mary's parents admitted that she was always contrary to a wish of ________.
| A．them | B．theirs |
| C．their | D．themselves |
—Have you got any books on English grammar？I'd like to borrow ________.
—Yes，here you are.But you must return it by Friday.
| A．it | B．one | C．some | D．any |
Tom's mother kept telling him that he should work harder，but ________ didn't help.
| A．he | B．which | C．it | D．none |