火车（train）
飞机（airplane）
汽车（bus）
星期日（sunday）
They are (running ).(run,running)
White and red make (pink).(pink, black)
I need two (oranges).(orange,oranges)
We need some ( fish ).(fish,egg)
选答句
How much is the fish?
It's thirteen yuan.
What are they doing?
They're swimming.

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