In the last few years thousands of films __________ all over the world.
| A．have produced | B．have been produced |
| C．are producing | D．are being produced |
—I left my handbag on the train, but luckily someone gave it to a railway official.
—How unbelievable to get it back! I mean, someone________ it.
| A．will have stolen | B．might have stolen |
| C．should have stolen | D．must have stolen |
So desperate _____ that no one could help another, each _____ to save himself and his animals.
| A．was the situation; was trying |
| B．the situation was; trying |
| C．the situation was; was trying |
| D．was the situation; trying |
—Where on earth did you get the book?
— ______
| A．What did you say? | B．I beg your pardon? |
| C．Say it again! | D．I didn’t get it on earth. |
Not everyone has realized what_______ important part the balance of________ nature plays in their life.
| A．an；the | B．/；the | C．an；/ | D．the；/ |
---Remember how we met for the first time, Dick?
---Of course I do. You _________ to the teachers' office hurriedly and ___________ me.
| A．had walked; weren't noticing | B．were walking; didn't notice |
| C．had been walking; noticed | D．walked; had noticed |