动词填空 用括号内所给动词的适当形式填空，并将答案写在答题卷标有题号的横线上。（本大题共8分，每小题1分）
The musical video you look forward to _________________(sell) out yesterday.
At this time yesterday, that woman together with her sons _______________(wait) for his    husband at the station.
Look! The snow ______________(stop).Let’s go outside to make a snowman.
Last week they replied to my letter. They said they __________(fly) to see me the next month.
I don’t know what I should pay attention to ________________(reduce) the pollution.
When I got to the factory, my workmates ________________(finish) their work.
Our school _________________(organize) a visit to the park unless it rains tomorrow. 
When we were young, our teacher told us the earth _____________(travel) around the sun.