Complete the examples and the explanation with the right form of be. this teapot is made of silver. it isn't made of gold. things from all over the sold at portobello road. the made in england. they're from taiwan. we form the present simple passive with subject + aren't + past participle ('made, sold). we use the passive when we don't know or aren't interested in who does the action. the watches are made in taiwan. we don't know who makes the watches. 50