—Mike didn’t notice the sign ____ it was right in front of him.—How careless he is!
My mother was waiting for me patiently _______ I was having my breakfast,.
If there _____no buying and selling of a nimals, there___ no killing in nature.
--I don’t know if his uncle ________. --- I think he ________ if it doesn’t rain .
It was not very warm ______ the sun came out.
The students hurried to the classroom ________ the bell rang.