问题补充：
Her pen pal not only helps her Englishgives her how to learn math well.
A. with; but also; some advices on
B. learn; but; some advice on
C. to learn; but also; some suggestion about
D. learning; but; some suggestions on
答案：
A. with; but also; some advices on
(答案→)B. learn; but; some advice on
C. to learn; but also; some suggestion about
D. learning; but; some suggestions on
解析：句意：她的笔友不仅可以帮助她学习英语而且对如何学好数学提出宝贵的意见。第一空是help sb with sth 或help sb (to)do，故排除D；第二空是not only…but (also)连接的两个并列的谓语动词；第三空是短语give sb some advice on…关于某事给某人提出意见。Advice是不可数名词，故排除A；suggestion是可数名词，故排除C，故选B。
