几句英语语法的问题1.Having worked in the company for two years,Mr.Smith is now _______marketing and public relations. 空格中的答案是taking care of 我想问为什么不是takes care of ?2.The mother only learn of her son's marriage long after the event.这里的 only 解释为什么（不可能是仅仅吧?）这里是only的用得比较少的用法吗?3.Rising sales can give a good indication of how this product is received in the market.这个句子帮忙翻译一下.

几句英语语法的问题
1.Having worked in the company for two years,Mr.Smith is now _______marketing and public relations. 空格中的答案是taking care of 我想问为什么不是takes care of ?
2.The mother only learn of her son's marriage long after the event.这里的 only 解释为什么（不可能是仅仅吧?）这里是only的用得比较少的用法吗?
3.Rising sales can give a good indication of how this product is received in the market.这个句子帮忙翻译一下.