Grammar
1)常见直接接动词-ing形式动词有:
admit, avoid, advise, allow, appreciate, consider (考虑), delay, enjoy, escape, fancy, finish, forbid, imagine, keep, mind, permit, practise, risk, suggest等。
2)常见直接接动词-ing形式短语:
feel like, give up, can’t help, be used to,keep on, insist on, look forward to, put off, devote…to , stick to, object to, thanks to, be busy in, get down to, have some trouble /difficulty /problems (in)等。如：