You can improve your English ______ practicing more.
| A．by | B．with | C．of | D．in |
________ twice, the postman refused to deliver our letters unless we chained our dog.
| A．Having bitten | B．Being bitten | C．Bitten | D．To be bitten |
When ______ in a red coat, she looks like a young lady.
| A．wearing | B．dressing | C．dressed | D．having on |
John was a student at this university from 1999 to 2003, ________ he studied hard and was made chairman of the Students’ Union.
| A．during which | B．by which | C．during which time | D．by which time |
He was in hospital for six months. He felt as if he were ________ from the outside world.
| A．cut down | B．cut off | C．cut in | D．cut through |
He ________ to us that he ________ the watch on the table.
| A．lied; lay | B．lay; laid | C．lied; had laid | D．lay; had laid |