— Susan! Shall We go out for a picnic this weekend？                                

— Oh，with all this work ______, I don’t know if I’ll have time to go out.

A．to do

B．doing

C．done

D．do

关于老蜜的判断错误的是

A.炼制老蜜会出现“牛眼泡”

B.有“滴水成珠”现象

C.出现“打白丝”

D.含水量较低，一般在14~16%