题目内容

We ____ hard together to achieve our common goal these years-to build a cleaner, safer and healthier world.

[ ]

A. have been working
B. are working
C. work
D. have worked

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桂壮红皮书假期生活寒假作业系列答案

Jimmy, a new student from a southern city, speaks a dialect we ________ hard to understand．

—Have you found the missing?couple in the mountain ?

—No, but we______hard to get in touch with them．

A． have tried B．have been trying C．had tried D．had been trying ．

—Have you found the missing?couple in the mountain ?
—No, but we hard to get in touch with them．

A．have tried	B．have been trying
C．had tried	D．had been trying ．

—Have you found the missing?couple in the mountain ?

—No, but we hard to get in touch with them．

A． have tried B．have been trying

C．had tried D．had been trying ．

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