Gun control is a subject ________Americans have argued for a long time.
| A．of which | B．about which |
| C．with which | D．into which |
They are living with their parents for the moment because their own house __________.
| A．is being rebuilt |
| B．has been rebuilt |
| C．is rebuilt |
| D．has rebuilt |
By the time I arrived at the hospital, his wound __________.
| A．had treated |
| B．was treated |
| C．treated |
| D．had been treated |
Please don't make such loud noise. The news of the volcanic eruption in Indonesia __________ and I want to listen.
| A．is broadcast |
| B．is being broadcast |
| C．has been broadcast |
| D．had been broadcast |
A Midsummer Night's Dream __________ at the Theatre Royal on 19th June, and then tours throughout Scotland.
| A．opens |
| B．is opened |
| C．will open |
| D．will be opened |
If nothing __________，the oceans will turn into fish deserts.
| A．does |
| B．had been done |
| C．will do |
| D．is done |