如图所示，陈明同学将手放在喉咙处，持续不断地说话，此时能感受到

A.声带的振动

B.空气能传声

C.固体能传声

D.面颊的振动

____ your leg seriously injured, you have no choice but to lie in bed.       [ ]

A. As          

B. Because          

C. With              

D. Since