谁能用sb be free to do sth sb be busy with sth sb b谁能用sb be free to do sthsb be busy with sth sb be busy in doing sth各造2个句子,

谁能用sb be free to do sth sb be busy with sth sb b谁能用sb be free to do sthsb be busy with sth sb be busy in doing sth各造2个句子, be free to sb 还是 be free for sb ..快速.. be free to sb还是be free for sb 是be free to sb 还是be free for sb 请问be free to do 英语sb be to do 谁能用‘want sb to do sth’造句 英语翻译answer to.be free for sb.一定要造句. be good for sb to do be able to do sb.a faver be to do with sb造句 There will be sb to do sth sb be bound to do sth是什么意思 词组 sb be said to do be kind to do sth还是be kind to sb? there will be sb+do还是to do? sb be seen to do sth 和 sb be seen do sth 有什么不同? be good for sb to do还是be good for sb do