When the earthquake, a destructive natural disaster, happened, ninety-nine coal miners were trappedin the coal mine _____the ruins, waiting _____.[ ]

What wine shall we prepare for the dinner?—You’d better think about it twice, because some guests are ________ about their wine.

Hey, guys. Do you often have a good time ________ after-school activities—Of course, we do. And we always have a lot of time ________ soccer.

We are sure everything here____ by the time you come back from abroad in a few years

I walked up to the top of the hill with my friends,________we enjoyed a splendid view of the lake [ ]