If he had spent more time practicing speaking English before, he _____ able to speak it much better now.

A．will be

B．would be

C．has been

D．would have been

当归、肉桂同用的方剂是（）

A.消风散

B.四物汤

C.苏子降气汤

D.补中益气汤

E.逍遥散