1. We don’t enjoy (use) as cheap labour. Being used
2. An eyewitness described how ten people (kill) in the fire. Had been killed
3. The radio (play) since 7 a.m. I wish someone would turn it off. Has been playing
4. (call), the milkmaid went to see the farmer. Being called
5. She (be) here but she (go) down with flu. Should have been... has gone
6. Don't be upset. I (understand) perfectly Understand
7. He (work) on the report when you (arrive) this afternoon Will be working ... arrive
8. I will ring the bell one more if he (not answer),I think he must( go) out  Doesn’t answer... have gone
9. I am sorry about the noise last night. We (have) a party. Were having
10.I distinctly remember (pay) him. I gave him two dollars  Paying
11.It is difficult to get used to (eat) with chopsticks  Eating
12.Listen to this ! I think this news (surprise) you.  Will surprise