Question

Fred entered without knocking and, very out of breath, sank _______ a chair.

A．on

B．off

C．into

D．to

Answer 1

C

考查介词的用法。句意为：Fred没有敲门就闯进来了，然后气喘吁吁地坐到椅子上。Sink into (a chair) 表示“沉下、沉落、陷入”。