根据中文提示，用词组的适当形式填空，每空一词。
【小题1】Hurry up!We are waiting for fell asleep (等候)you at the gate．
【小题2】He was so tired that he good at on foot (入睡)as soon as he lay down．
【小题3】Michael is cut down (擅长)physics but he is weak in chemistry．
【小题4】Li Lei seldom goes to school (步行)．He usually takes a bus there·
【小题5】A lot of trees were (砍伐)．As a result，there were more sandstorms．
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解析：
【小题1】考查短语waiting for,等待.结合语境及前文助动词are,可知动词用现在分词形式.
【小题2】考查短语fell asleep,入睡.结合语境可知本句描述的是过去某时发生的动作,故用一般过去时态.
【小题3】考查短语be good at擅长某事.
【小题4】考查短语on foot,步行.注意foot用原形.
【小题5】考查短语cut down,砍伐.结合语境可知本句主语是动作对象,故用被动语态.注意cut的过去分词和原形动词词形一致.