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?
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?