When I hear the name of Taiwan, I can’t help _____ Mount Ali and Sun Moon.A. thinking over B. thinking ofC. thinking about
This accident (事故) happened (发生) ________ a winter afternoon.
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—I am going to Sanya for my holiday tomorrow. —_____________.
— Look! The girl ______ long hair is making a snowman. Is she Sandy? — It _______ be her. I’m not sure.
The Maths problem is so difficult that _______ students can work it out.