Don’t _________ too much time chatting online， Jack.—OK， Mom.

You’d better not read _______. It’s bad for your eyes.—You’re right. I won’t do that again.

Being a teacher, you must observe your behavior, for ________ you say and do has a life-long effect on your students

Dick made it ______ to all hisfriends

He asked me, “Did you see my sister last night?” —-He asked me __________