If there ______ no water or air on the earth, all living things would die.
| A．is | B．were | C．are | D．will be |
“Was it under the tree _____ you were away talking to a friend？” “Sure. But when I got back there, the bike was gone.
| A．that | B．where |
| C．which | D．while |
Was it at five o’clock ______the fire broke out？
| A．when | B．that |
| C．which | D．in which |
Was it five o’clock ______the fire broke out？
| A．when | B．that |
| C．which | D．in which |
It was just in the room _____ he was born _____ he died.
| A．where, which | B．that, that |
| C．where, that | D．which, that |
It was the boy _____ had been in prison _____ stole the money.
| A．who, where | B．that, how |
| C．who, that | D．that, which |