英语选择 (最后4题目 - )1.I recommended him ____ this dictionary but

英语选择 (最后4题目 - )
1.I recommended him ____ this dictionary but he could not afford it.
A buy B buying C to buy
麻烦告诉我下recommend这个词的用法
2."Did Mary say anything about me in the letter?'
"Only that she'd appreciate ____ from you"
A to hear B hearing
appreciate不是+to形式?
3.There are a lot of things to do in London,____ going to museums.
A like B as
怎么不选B?