Question

Mom asked me to _____________ grandpa when she was out.

A．look up

B．look at

C．look for

D．look after

Answer 1

D

试题分析：look up查阅；look at看；look for寻找；look after照顾，关心。句意：当她出去时，妈妈让我照顾爷爷。故选D。
点评：解答此类题型的要点是了解各个短语的基本含义及用法的不同，同时注意其表示多个含义的现象，然后结合语境选择合适答案。当人称代词作动词短语宾语时，注意要放在动词后面介词前面。