Question

【题目】—Who is Dave looking ?
—His mother. She's been in hospital for a few days.
A.for
B.after
C.at
D.up

Answer 1

【答案】B
【解析】考查介词。句意：—戴维在照看谁？ —他的母亲。她住医院里有些天了。look for寻找；look after照看，照顾；look at看；look up在字典参考书中查找，向上看。结合答语，所以选B。