题目

潜水艇是靠__________________实现的上浮和下沉。 答案：改变自身重力根据括号内所给汉语意思写出单词的正确形式(每空一词)。小题1:It’s not his bag. It’s        (她的).小题2:My father and mother are my        (父母)。小题3:      （那些）are his books.小题4:The        (下一个) one is my cousin.小题5:I have two good        (堂兄弟)小题6:This is my        (手表).It’s very nice.小题7:They have three        (词典)？小题8:I like        (英语).小题9:     （这里）are some flowers(花)for you.小题10:Can I        (请求) my teacher for help.