【题目】—Is there any hope of saving his life? —His injuries are extremely serious, but he’s expected to.
A.pull in
B.pull through
C.pull on
D.pull down

【答案】B
【解析】考查动词短语辨析。句意: ——还有希望救他的命吗? ——他的伤太重了, 但是他还有希望康复。pull in“吸引, (火车)进站”; pull on“匆忙穿戴”; pull down“拆毁(建筑物)”；pull through“康复”, 符合句意。所以选B。