问题
选择题
She ______his number in her phone book to ______that she had got the right number.
A．looked for , be certain
B．picked up , make sure
C．picked out , be sure
D．looked up, make sure
答案
答案：D
本题考查短语辨析。句中look up查询；make sure保证。句意：她在她电话簿查询他的号码，目的是保证她得到正确的号码。