题目内容
People know clearly of what they should do nowadays.
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1. Selecting a mobile phone for personal use is no easy task because technology _____ so rapidly.
–Excuse me, sir. Would you do me a favor?--Of course. What is it?--I ____ if you could tell me how to fill out this form.
They ____ on the program for almost one week before I joined them, and now we ____ on it as no good results have come out so far.
When the old man _____ towalk back to his house, the sun ____ itself behind the mountain.
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