______ young man standing there looks strong and healthy; however, as_________ matter of fact ,he has a serious disease.　　　　　　

Can she play the guitar?—______________.

How is the weather in winter in Yongjia?—It’s ________.

The boat went the lake.[ ]

Someone is knocking at the door. Is it Ann?—It _____ be her. She is giving a performance at the theatre now.