写出下列单词的复数形式。(20分)
根据单词首写字母以及中文提示填上正确的单词。
Welcome to my bedroom .In my b__________（卧室）you can see a chair , a d____（课桌）and a b_______（床）. Look , there is a pencil—case ,a c____________（电脑)and a lamp on the desk . In the pencil—case there are three __________（钢笔）.
填入单词所缺的字母。 
请你根据上下文和首字母提示完成对话。(6%)
It’s one forty in the afternoon. The students and Mr Green are having an English class (在上英语课).
Mike: Sorry, Mr Green. I’m late. M__________ I come in?
Mr Green: C_________ in, please. D________ be late again.
Mike: Yes, Mr Green.
Mr Green: Now o__________ your books, boys and girls.
Students: O__________.
Mr Green: Now r__________ the new words, please.
Lin Tao: All right.
选择正确的答案，把单词补充完整，并写出汉语意思。(10分) 
填入所缺单词,并写出中文意思。(10%)