He           the book to the library if he            it tomorrow.

A．returns; finishes reading

B．will return; will finish to read

C．will return; finishes to read

D．will return; finishes reading

博利康尼的主要成分是（）

A.沙丁胺醇

B.特布他林

C.福莫特罗

D.沙美特罗