In summer, trees have green ________.A._爱下问搜题

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问题选择题

In summer, trees have green ________.

A. leaf
B. leafs
C. leaves

答案

答案：C

选择题

_________you have expressed your fierce determination to get it right, you should act immediately.

A．Even though

B．Ever since

C．Now that

D．As though

填空题

自动线的控制方式有（）和（）两种。