Do you know what the meeting is about？ —Yes, of course. It will _____some important rules we need to know about our school.

What are you going to do this Sunday? -I ________ yet.

There are so many girls over there,.Which one is your sister? —-The one ____hat is yellow.

It’ll stop the sand from moving_____the rich farm land in the south.[ ]

This is the ______ bag ______ lost yesterday, but it’s not mine.