really
| A．breathe | B．thread | C．theatre | D．ocean |
I can’t ___ him doing a thing like that.
| A．believe | B．see | C．think | D．imagine |
Was it near the bridge ____ the car accident took place?
| A．where | B．that | C．when | D．at which |
___in the air, this kind of steel become harder and harder.
| A．Cooling | B．Having cooled | C．Being cooled | D．Cooled |
In a chemical change, energy cannot be created ,____.
| A．nor can it be destroyed | B．not it be destroyed | C．so can’t it not be destroyed | D．either it cannot be destoryed |
The Loisels did what they could ___ the debts.
| A．to pay off | B．to pay for | C．paid off | D．paid for |