It is probably easier for teachers than for students to appreciate the reasons why learning English seems to become increasingly difficult once the basic structures and patterns of the language have been understood．

问答题你知道世界上最受欢迎的饮料——茶是由于意外而发现的吗

单项选择题Who brought the writer the bad news that her mother was ill ______

单项选择题Hollywood used to be a ______.

单项选择题What made Professor Broad continue his search for more information on McKay

单项选择题（1）（）

A．applying
B．doing
C．offering
D．getting