单项选择题
W: Is your brother older than you M: No. he is 3 years younger. He is 18.
A.18 years old. B.15 years old. C.20 years old. D.21 years old.
A.Lightning can happen even if there is no cloud. B.Lightning won’t do harm to people’s health. C.Lightning can travel sideways. D.Lightning can strike very far.
A.In his office. B.At the dining room. C.At home. D.In the restaurant.