The first decade in the 21st century __________ the rapid rise of China as a world economic power.
—Does it rain a lot in this area? —________, it hardly ever rains; the climate is like that of a desert.
Look! Here is our new flat. We can get a wonderful ________ from our window.
It was last year ________ you taught me how to drive.
My mind ________ just now, so I didn’t catch what he said.
—Really, I don’t know ________ to join the army or to find a job after my graduation. —Why don’t you ________ your parents’advice? They will surely help you.