—— Tom, did Mr.Li join you in your dicussion?—— No, he____, but he happened to have fallen ill.
The poor man , ________,ran out of the dark cave.
The stone bridge __ _last year is very beautiful.
He asked us to him ______ carrying through their plan.
Only after my friend came ___________________________.
While ________ to foreigners,you must try your best to make yourself ________.