—________model plane is this?
—I think it’s Jim’s．Look，his name is on it．
| A．Who |
| B．What |
| C．Whose |
| D．Where |
________I was in the US，I made a lot of American friends．
| A．While |
| B．Although |
| C．Unless |
| D．Until |
—I don’t know________．
—Because he has to look after his mother．
| A．why he is leaving |
| B．why is he leaving |
| C．whether he is leaving |
| D．whether is he leaving |
She________to an English program while her parents________TV．
| A．was listening；is watching |
| B．listened；were watching |
| C．was listening；watched |
| D．was listening；were watching |
—I didn’t see you at the beginning of the party last night．
—I________on nay biology report at that time．
| A．worked |
| B．work |
| C．was working |
| D．am working |
The girl was flying a kite________her father came back．
| A．when |
| B．while |
| C．until |
| D．after |