读一读,找出每组单词中不同类的一个。 ( ) ⑴ A. time B. morning C. afternoon D. evening ( ) ⑵ A. cinema B. dictionary C. library D. hospital ( ) ⑶ A. magazine B. post card C. tonight D. comic book ( ) ⑷ A. tomorrow B. this weekend C. next week D. yesterday ( ) ⑸ A. do B. am C. is D. are