Many people believe we will faceenvironmental disasters _________ we completely change the way we live.

What a terrible experience! ________， you’re safe now—that’s the main thing.

It is announced that big prizes will go to ________ finishes the assignment on time

Oh, it’s too difficult for me ________ the work in such a short time.—Anything is possible if you put your heart into it.

Failure can be positive contribution to your life________you learnhow to use it.[ ]