问题补充:
The two brothers look so much alike that it is difficult to .
A. tell them from
B. tell from them
C. tell apart them
D. tell them apart
答案:
A. tell them from
B. tell from them
C. tell apart them
(答案→)D. tell them apart
解析:考查词组take apart“区分”,tell sth from sth“区分…和…”,所以AB都少宾语,另外代词要在tell apart中间,选C。句意是:两兄弟看起来很象以至于很难区分他们。