把下列句子改为否定句。
(1)We are students. ________________________________________
(2)You are young and polite. ______________________________
(3)I am tall and strong. ___________________________________
(4)Sarah’s helpful at home. _______________________________
相关试题
选择单词或词组（每个只能用一次），将其标号填在横线上。10分
（1）The book is _______ the bed.
（2）Could I _______ Mike , please?
（3）Don’t read _______ . It’s bad for your eyes.
（4）It is a _______ pencil.
（5）I will ______ with Mike this week
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