Now one of the most serious problems many people are worried about _____ on the lack of adequate housing space.

It was reported that two roads being closed in Teesdale _____icy road conditions.

I just wonder ____________ that makes him soexcited.

You talk ______. That is_________ impolite.

Do you have _____ apples— Sorry, I don’t have ____, but I have _____ oranges.