Children _______ sit in the front seat of a car. It’s too dangerous.
| A．need | B．needn’t | C．must | D．mustn’t |
My brother and 1in Yinchuan since 1997.
| A．had lived | B．have lived | C．live | D．will live |
We have only one Earth. It’s our common _.
| A．family | B．house | C．home | D．room |
—Need I wash your car after repairing it?
—Yes, that would be much _.
| A．good | B．well | C．better | D．best |
—When will he leave for Shanghai?
—As soon as he _ his work.
| A．finished | B．will finish | C．is finishing | D．finishes |
Tom’s mother is busy _____ breakfast for Tom.
| A．cook | B．to cook | C．cooks | D．cooking |