Sixteen-year-olds shouldn’t ______ to go to an Internet bar.
—I can’t keep on studying. I have a stomachache. —_______.
This is the only thing _______ I can do for you.
——What did you say to your grandmother on the phone just now? —— I asked her _______ .
I’m sorry I’m very busy now. If I ______ time, I ______ come to see you.
___ weather it is! Let’s go for a picnic!