They had to ______ the meeting because the organizers didn’t prepare the hall well, where people can share their opinions and hold discussions. 

(2013·新课标全国卷Ⅱ)Would you like to ________ with us to the film tonight?

It is reported that floods and serious loss of soil and water have _______an ample amount of mud in the Yellow River, making pumping water out of it hard for farmers around.

With modern equipment，many mysteries have ________ to light in recent years.

It is generally believed that constant reading and comprehending can ______ our mental ability of comprehension while physical exercise can help build up our body.