单项选择题

Questions 19 to 22 are based on the conversation yon have just heard.

A．You can grow vegetables vertically.
B．You can raise plants in a confined area.
C．You can plant a wide variety of plants together.
D．You can enjoy the beautiful scenery.

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单项选择题

A．Its trees.B．Its stone walls.C．Its rock garden.D．Its pronunciation.

A．Its trees.
B．Its stone walls.
C．Its rock garden.
D．Its pronunciation.

单项选择题

A．On a mountain path.B．In a supermarket,C．On a road.D．In a railway station.

A．On a mountain path.
B．In a supermarket,
C．On a road.
D．In a railway station.

Questions 19 to 22 are based on the conversation yon have just heard. 您的浏览器不支持 audio 元素。

Questions 19 to 22 are based on the conversation yon have just heard.