——The windows must have taken you quite a long time that day.
——Right. They _______for weeks.
| A．haven’t been cleaned | B．hadn’t been cleaned |
| C．didn’t clean | D．haven’t cleaned |
They haven’t arrived yet but we _____ them at any moment.
| A．are expected | B．have expected |
| C．are expecting | D．will expect |
I feel sure I _____ her before somewhere.
| A．was to meet | B．have met |
| C．had met | D．would meet |
You’ll never guess who I met today — my old teacher! We _____ for 20 years.
| A．don’t meet | B．haven’t met |
| C．hadn’t met | D．couldn’t meet |
I _____ your last point — could you say it again?
| A．didn’t quite catch | B．don’t quite catch |
| C．hadn’t quite catch | D．can’t quite catch |
They won’t buy any new clothes because they _____ money to buy a new car.
| A．save | B．were saving |
| C．have saved | D．are saving |