Can you tell the ________ difference between the words “require” and “request”? I sometimes get puzzled by their meanings.

During his five-day state visit to Japan, Hu Jintao  made  such an ________ speech that all the people present were ________.

The black people thus lay on the hard wooden boards, _________ stand up.

I suggest Zhoushan for your holiday. It is really _______ a visit.

I wouldn’t think it     to ask him to    the club—he’ll only refuse.