When ______ and visit our exhibition next month ? -When _______ , I will let you know

It was ______ that they all went swimming in the river. [ ]

oday, poverty is still a big problemin the United States, ______ more than 10 percent of the whole population.

So sleepy_______ that he could hardly keep his eyes______.

s being bright, he has always beenworking hard.— No wonder he _______ in almost allsubjects.