The river goes _________ the city and many people like to have a race to swim ________ it every summer.
She will be a doctor------ two months.
This kind of bamboo is not suitable ____pandas _____eat.
Don’t forget to _______ the lights when you leave the classroom.
If you feel tired , you may stop _______.
A table is made _____wood and paper is made ______ wood, too.