—Has Sam finished his report?
—I have no idea. He _______ it in his office the whole morning.
| A．writes | B．has written |
| C．will write | D．was writing |
They used to be friends, ______?
| A．don’t they | B．didn’t they |
| C．do they | D．did they |
It has been many years ________ we met at the train station in 2008.
| A．when | B．after |
| C．before | D．since |
--How can young people realize their dreams?
--No matter what difficulties they meet, they can’t ________.
| A．give them up | B．give up them |
| C．give it up | D．give up it |
Basketball ________ by a Canadian doctor ________ James Naismith.
| A．was invented, name | B．was invented, named |
| C．invents, named | D．is invented, named |
People shouldn’t ________ take photos while seeing famous pictures in the art gallery.
| A．allow | B．be allowed |
| C．be allowed to | D．allow to |