---______ he have been chosen as captain of our school football team?
---Yes, he______. Can’t you see he’s wearing an armband?
| A．Can; can | B．Must; must have | C．Can; must have | D．Must; must |
It was only when I reread his poems (诗) recently _____ I began to appreciate their beauty.
| A．until | B．that | C．then | D．so |
I ______ her to work hard at English, but she didn’t listen to me.
| A．advised | B．tried to persuade |
| C．hoped | D．suggested |
—How long ____ you ____ in Singapore?
—For just the weekend． I’ll be back next Monday morning．
| A．have; stayed | B．are; staying | C．did; stay | D．do; stay |
Every possible means ___ to prevent the air pollution, but the sky is still not clear．
| A．is used | B．are used | C．has been used | D．have been used |
A friend of ______ went to the railway station to see ______．
| A．Rebecca；her off | B．Rebecca； off her |
| C．Rebecca’s； her off | D．Rebecca’s； off her |