—Can I use your pen?     

— __________.  [ ]

A. Thank you         

B. You can

C. Yes, of course          

D. That's very nice of you

下列（）组花卉，在修剪后会有乳汁从剪口处流出.

A.韭兰、橡皮树、雁来红

B.橡皮树、一品红、银边翠

C.扶桑、一品红、仙客来

D.美人蕉、一品红、孔雀草