my hobby is to collect句子对吗

My hobby is __old coins.为什么填to collect? my hobby is to collect stamps与my hobby is collecting stamps有 my hobby is collecting stamps 和 my hobby is to collect stamp To collect kites is my hobby与Collecting kites is my hobby一样不 my hobby is to collect coins.my hobby is collecting coins 我见 My hobby is collecting old coin.和My hobby is to collect old His hobby is (to collect) coins.为什么用to collect? 单选：My hobby is ( )mathbox covers.A.to collect B.collecting 应 10.My hobby is ______all kinds of coins.-招财猫问答 A.to collect 这个句子对吗?My hobby is sing and dance. my hobby is collecting coin.为什么不是collect coin呢? 我的爱好集邮英语作文(My hobby is collect stamps） My hobby is collect s