--- How about the book you are reading?
--- Good indeed. It ___________ many problems we have come across in our study.
| A．says | B．talks | C．covers | D．refers |
I think you must be mistaken about seeing him at the theatre； I’m sure he _____ abroad all week.
| A．is | B．was |
| C．has been | D．had been |
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 |