— I saw Dave in the lift this morning.
— Really? He _______ around here for a long time.
| A．won’t be seen | B．wasn’t seen |
| C．hadn’t been seen | D．hasn’t been seen |
--I'm sorry I made a mistake!
--Nobody is perfect.
| A．Take your time | B．You're right | C．Whatever you say | D．Take it easy |
I want to tell you is the deep love and respect I have for my parents.
| A． | That | B． | Which | C． | Whether | D． | What |
If he had spent more time practicing speaking English before, he _____ able to speak it much better now.
| A．will be | B．would be | C．has been | D．would have been |
The water supply has been cut off temporarily because the workers ____ one of the main pipes.
| A．had repaired | B．have repaired | C．repaired | D．are repairing |
At our factory there are a few machines similar to _______ described in this magazine.
| A．them | B．these | C．those | D．ones |