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　　答案：speed后加up　speed up "加速"。

　　3．Giving another hour, I can also work out this problem.

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　　答案：Giving→Given　give与I之间为逻辑上的动宾关系，故应用过去分词作状语，表被动意义。

　　4．The place was so crowded and we soon lose sight of him.

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　　答案：lose→lost　and连接两个并列的简单句，由前一句中的was可知，后一分句应用一般过去时。

　　5．At sight of the snake, the girl burst into tears.

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　　答案：sight前加the　at the sight of "一看见......"。

　　Ⅲ.语法填空

　　The Taj Mahal is considered to be one of the most beautiful buildings in the world, __1__shows its different beauty with the sunlight changing its color during the day, so __2__(technical) you can make a visit anytime of the day.

　　However, sunrise is the best time __3__the monument is like a blooming flower when the day breaks. Moreover, visiting in the early morning, you can avoid not only the heat but the crowds. For those people in pursuit of some perfect shots who don't want to wait too long, getting up earlier can be very __4__(reward)．

　　 In addition, a sunset visit is also a nice __5__(choose) if you are not a morning person. The temperature becomes cooler __6__the burning afternoon and the monument __7__(surround) by soft silver light. Usually there are more visitors at sunset than sunrise; it takes patience __8__(capture) some good pictures.

If you happen to be in Agra on the full moon day __9__2 days before/after, a night visit to the Taj Mahal is also available.Unlike what