1)My birthday cake is baked by my mother.
2)The internet is invented by the US military in the 1960s.
3)The parts of this phone are made in China , but the phone is assembled in Japan.
4)Envelopes are sold in most stationery stores.
5)The office is empty every evening.
6)Homonymsare pronounced the same but have different meanings.
7)Three criminals were arrested in the park last night.