单数句变复数句Thisisabox.Thisisabus.Ttisaruler.Thisisn'tabook.Thatisn'tanapple.Itisn'tadesk.复数句变单数句Thoyareerasers.Thoyaren'torages.Thesearecakes.Thoseareeggs.Aretheypens?写出答语(肯定否定回
单数句变复数句
Thisisabox.Thisisabus.Ttisaruler.
Thisisn'tabook.Thatisn'tanapple.Itisn'tadesk.
复数句变单数句
Thoyareerasers.Thoyaren'torages.Thesearecakes.
Thoseareeggs.Aretheypens?
写出答语(肯定否定回答)
AREyoufine?IsTomastudent?Isthisatoy?
Isthatabook?Arethesedesks?Isitacar?