1.be glad to do sth
be glad of/at doing sth
2.enjoy doing sth
3.abandon oneself doing sth
4.be happy to do sth
5.be pleased to do sth
6.be nice to do sth
7.be delighted to do sth
8.have fun doing sth
9.have a good time doing sth
10.have a nice time doing sth
11.have a great time doing sth。
