单词拼写(共10题，每小题1分；满分10分)   
根据下列句子及所给汉语注释，在答题卡上相应题号的横线上写出空缺处各单词的正确形式。
小题1:Children sat happily on            (坐垫) on the hard floor.
小题2:The               between the two cities is 600 miles. (距离)
小题3:They are on a               across the Atlantic Ocean.（航海航行）
小题4:Many dead fish are seen _______(漂浮)on the river.
小题5:They travelled by ____________ (气球)over the ocean.
小题6:Jack took a deep __________________ (呼吸) and then dived into the water.
小题7:He’d like to live in the              (城市商业区的) area.
小题8:He threw the paper onto the fire and it flew up the ___________ (烟囱).
小题9:Because there is no food, the people are _________(挨饿)
小题10:The _________(商人)of Arab are doing their things all of the world