用括号内所给动词的正确形式填空.（请注意时态和语态两个方面噢）
1.Luckily,they_____(not trap)in the car.They got out of the car.
2._____the ground____(cover)with snow yesterday?
3.Before you leave,make sure that all the windows____(lock).
4.Hnives_____for cutting things.(use)
5.______this kind of car______(make)in the USA?
6.You_____(want)on the phone.
语态互换,每空一词
1.Some trees are going to be planted by them this afternoon.
They____ ____ ____ ____some trees this afternoon.
2.You can take the medicine three times a day.
The medicine____ ___ ____ ____three times a day.
3.Simon will look after the little dog well.
The little dog____ ____ ____ ____ ____by Simon.