Many students find it hard to the rules in this school.
Not all of us know the difference ________ wheat, oats and barley.
He is running ________ the wind towards the east of the station ________ Tom running ________ the right.
I made coat ________ my own hands. It was made ________ hand not with a machine.
A warning news report from Qatar announces that a group of Islam will continue to kill Americans wherever they are ________ they leave the Arab world forever.
— May I go and play football with Dick this afternoon, Dad? — No, you can’t go out ________ your work is being done.