请英语好的朋友帮帮忙造3个句子，拜托各位

there is no doubt that he is telling a lie.
it is said that the meeting will be put off.
What has become of John?约翰怎么样啦?

there is no doubt that......毫无疑问的.....
it is said that 据说
become of...... 使遭遇，发生于