14 we have four lessons.改为否定句 15 Nancy doesn't run fast .改为肯定句

问题描述:

14 we have four lessons.改为否定句 15 Nancy doesn't run fast .改为肯定句
16.My dog runs fast .否定句和一般疑问句 17 Mike has two letters for him.一般疑问句

14.We don't have four lessons.
15.Nancy runs fast.\
16.否定句:My dog doesn't run fast.
一般疑问句Does your dog run fast?
17Does Mike have two letters for him?