In my opinion, everyone has periods in their lives _______ everything seems very hard.

Yao Ming has a _______for playing basketball .He was a successful NBA player.

What _______ you do if you _______ 5 million yuan?—I’d travel around the world.

When ______ the United Nations founded?

Mum, could you buy this new skirt for me –No. I’ll buy a cheaper but ________ one for you.