词汇运用。(每小题1分，满分15分) A)根据句意及汉语提示，拼写单词，使句子完整、正确。 小题1:These exchange students are from different (国家). 小题2:My bike is (损坏的), so I have to walk to school these days. 小题3:These volunteers can help people with all kinds of (问题 ) . 小题4:'Simon, (检查) your homework carefully,” the mother says to the little boy. 小题5:----Who are you (担心) about, Madam?  ----My little son. I can't find him now. B)根据句意并用括号内所给，单词的适当形式填空，使句子完整、正确。 小题6:This is my__________(twenty) time to see the singer. He looks very cool. 小题7:Daniel is a kind and (help) boy, and we all like him. 小题8:The little girl is always the first (come) to school on weekdays. 小题9:Thanks for (invite) us to visit your new house. 小题10:Our teacher says that one of the (visit) will come to our school next week. 小题11:My father is a (cook) in a big restraint in our town. He is good at cooking. 小题12:Why not ask a computer engineer (fix) your computer？ 小题13:We are really (luck) to go to the Hong Kong Disneyland. 小题14:The song Two Butterflies(蝴蝶) (sound) wonderful. I like it very much. 小题15:My new flat is really different from (they).