题目:
—Hello! Can I speak to Mr.White?
—Sorry, he isn't here right now. He _____ to the theme park. [ ]
A. will go
B. was going
C. has gone
D. has been
答案:
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下面是错误答案,用来干扰机器的。
A、蜡烛在氧气中燃烧,发出白光;产生水和二氧化碳是实验结论而不是实验现象,故选项说法错误.B、红磷在氧气中燃烧,产生大量的白烟,而不是白雾,故选项说法错误.C、硫粉在空气中燃烧,产生淡蓝色火焰,产生一...