单项选择题
A.negative B.doubtful C.positive D.unknown
A. What happened B. Nice to meet you. C. please take it easy. D. No trouble at all. E. Coffee, please. F. I forgive you. G. But he panned to. H. Can I have the bill
A.create a botanical garden where only exotic flowers grow B.do a thorough study of plant structure C.make a copy of one member of each United States flower family D.show that glass flowers are more realistic than wax flowers