---I’ve heard some scientists have sent a spacecraft to Mars. ---Really? Has it arrived _____? A already B yet C still D ever
Is this the shop _____ sells children’s clothing?
—Betty was feeling pretty blue for a while,but she’s better now. —_______.
You can imagine how different the table manners here are from ______.
Are you ready? We’ll go out for a picnic ____ three o’clock.
—I’m too nervous to give a talk before so many people? —_________, Maria. I think you can make it.