问题补充:
Since you have found it hard to learn Spanish,why not try foreign language?
A. to learn a second
B. learning a second
C. learning the second
D. to learn the second
答案:
A. to learn a second
(答案→)B. learning a second
C. learning the second
D. to learn the second
解析:try to do sth.尽力做某事;try doing sth.尝试做某事;a second=another。