妈妈向好友介绍说:“这是我儿子”,她可以说:________A.This is my daughter. B.This is my son.C.This is my brother.
—What are you? —I’m drawing a picture. A.doB.doing C.Does
—is he? —He is reading. A.What;do B.What;doing C.Where;doing
— are you? —I’m in the bedroom. A.Where B.What C.How
Iin the kitchen. A.cooking B.am cooking C.is cooking
There is cloud. A.noB.not C.a