Margaret asked me to repeat( )telephone number( )second time so that she could write it down

问题描述:

Margaret asked me to repeat( )telephone number( )second time so that she could write it down
A.the;the B.the;a C.an;the D.an;a
该题正确答案应选B,说明其他几项为什么不对,

用排除法,首先可以排除C、D两项,t不是元音字母所以不能和an搭配.
a second time 是又一次,再一次的意思
玛格丽特叫我再重念一遍电话号码以便她能把它记下.