Mr.Smith caught hold ____ Bob and said,'It's very kind ___ you.'

问题描述:

Mr.Smith caught hold ____ Bob and said,'It's very kind ___ you.'

of,of

Mr.Smith caught hold of Bob and said,'It's very kind of you.'
【take hold of 】抓住某人
【It's kind of sb to do sth】某人做.真是太好了