单项选择题
W: Are you coming with me to the art show M: No, I’ m too busy with another project.
A. He must hand in a full report on the exhibition. B. He is too busy to go along. C. He has to wash his hands first. D. He has already seen the show.
A.centre B.heart C.start D.top
A.do B.involve C.mean D.mind