1.“What_____a knife_____(make) of?" "It _____ _____(make) of metal and wood."
2.These kinds of machines _____ _____ (invent) in China long time ago.
3.This kind of cars_____ _____(produce) in my father's factory.
4.The kids should _____ _____(devide)
1. is ...made is ....made
2. were invented
3.was produced
4.be devided
1.“What___is__a knife__made___(make) of?" "It __is___ ___made__(make) of metal and wood."
2.These kinds of machines ___were__ ___invented__ (invent) in China long time ago.
3.This kind of cars__is___ __produced___(produce) in my father's factory.
4.The kids should ___be__ __devided___(devide)
5.This kind of apples _is__ _grown__(grow) on our farm