7．
句型转换
(1) They are playing chess over there.（对划线部分提问） are they over there?
(2)I’m doing my homework.(改为一般疑问句) you your homework?
(3)Linda is writing an e—mail to her pen pal.(改为否定句)Linda an e—mail to her pen pal.
(4)Ann usually plays the piano in the room.(用now替换usually改写句子） Ann the piano in the room now.
(5)Are they having lunch at school now?（用every day替换now改写句子） they lunch at school every day ?