It's Saturday afternoon and Tom together with two of his classmates new tricks on the skating ramp． [ ] A．has tried B．have tried C．is trying D．are trying 题目和参考答案——青夏教育精英家教网—

题目内容

It's Saturday afternoon and Tom together with two of his classmates ________ new tricks on the skating ramp．

[　　]

A．has tried

B．have tried

C．is trying

D．are trying

答案：C

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