-- Hello, may I speak to Mr. Smith?-- Sorry, he isn't in. He ______the office.A. has been toB. has gone toC. has been away
My classmate always __________ a pen ____________me.
.Everyone should learn ___________about the world.
We go to play volleyball ___________ Friday afternoon.
The students in her class are never late _____ school and they’re nice ____ each other.
It is very good for students to do ___________ in the morning.