Mr Green drove slowly on the way home until he reached the high way, ______the speed limit was 60 miles per hour.
| A．because | B．which | C．where | D．that |
singer
| A．single | B．language | C．stronger | D．bringing |
realize
| A．pyramid | B．responsibly | C．whisper | D．title |
The book, ___________ is green, has been lent to my brother.
| A．of which cover | B．the cover of which | C．whose covers | D．its cover |
It is careless _______ such a mistake.
| A．of you to make | B．of your making | C．for you to make | D．for your making |
John received an invitation to dinner, and with workhe gladly accepted it.
| A．finished | B．finishing | C．having finished | D．was finished |