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Is it made of silver?
It is made in Thailand.
What is the model plane made of?
Where is tea produced in China?
How is it grown?
It is planted on the side of mountains.
They are picked by hand and then are sent for processing.
Read the sentences below, paying attention to the underlined parts.
被动语态 (Passive Voice)
一般现在时的被动语态:
1. Tea is grown in South China.
（改为主动语态）
People _____ _______ in South China.
2. People use metal for making machines. (改为被动语态)
Metal ___ ___ __ making machines.
grow tea
is used for
3. They produce silk in Suzhou.