2.Which doesn't fit in this group: library, drugstore, classroom, restroom, playground？

　　3.What part of the word "unicycle" means "one"?

　　4.Spell the first syllable in the word "wonderful."

　　5.What's the plural form of "foot"?

　　6.Correct the errors in this sentence: "The picture show two kind of people."

　　7.Which is added to the beginning of a word: a prefix(前缀) or a suffix(后缀)?

　　8.How is "January" abbreviated on a calendar(日历)?

　　9.Where does the comma(逗号) go in the date Oct.1 2003?

　　10. Add a prefix to the word "true" to form a word that means "false" or "incorrect".