----I _________ the book for a whole hour .
---- No wonder you look so tired .
| A．have read | B．have been reading | C．read | D．are reading |
If it _____ for the heavy rain then, we would have arrived here ahead of time.
| A．shouldn’t be | B．weren’t | C．had not been | D．be not |
We should protect the environment, for plenty of fresh air ________ to good health.
| A．adjust | B．contributes | C．distributes | D．appeals |
By the time you arrive home, I ____ ,so please don’t make any noise when you come in．
A．have been sleeping B．would have slept
C．had sleptD shall be sleeping
-----What upsets him?
-----_____ his computer is out of order．
| A．Whether | B．What | C．That | D．How |
As we all know, Britain’s Prince William and Kate Middleton got married in April in Westminster Abbey , ______ Princess Diana’s funeral was held．
| A．when | B．which | C．where | D．as |