填空题


【参考答案】

when改为that。
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单项选择题
A．it often snows in June in Colorado.B．it doesn’t snow in June in Colorado.C．it always rains in June in Colorado.
A．it often snows in June in Colorado.
B．it doesn’t snow in June in Colorado.
C．it always rains in June in Colorado.
填空题
this改为which。
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