be wild about doing sth
be serious about doing sth.
be worried doing sth 还是be worried about doing sth
be worried about后接sth还是doing sth?
什么是动词结构?what about doing sth.talk to sb.about sth.be doing s
be excited in doing sth?be excited about doing sth?区别
How about doing sth.
about doing sth
dream about doing sth.
be crazy about doing sth 和be crazy to do sth的区别是什么
be excited about doing sth.与be excited to do sth.有何区别?
be happy (about)doing sth .be happy to do sth.哪个对?
be always doing sth .