The place ________ the bridge is supposed to be built should be _________ the cross-river traffic is the heaviest.
—What’s made Mr. Grey so sad?—_____ three tickets to the pop art exhibition.
I’m glad to learn that his attitude _____ this plan is similar _____ mine.
_____ you have the chance to study, you’d better make full use of your time.
Vincent van Gogh’s paintings were at last _____ as works of genius.
You should visit your parents _____, even when you are very busy.