"don't _____to strangers on your way to and from school",my mother often _____to me.

问题描述:

"don't _____to strangers on your way to and from school",my mother often _____to me.
第一个空是不是talk 和 speak 都行?第二个空为何必须是says 而不能是 speaks?

第一个空是的.第二个空只能用says是因为这里的用法是say一句话to sb ,say是及物动词,而speak to sb 中的speak是不及物动词,后面不能加宾语.