We can’t have PE class on the playground ________ the rain.
--Can you go to the concert with us? --Sorry, I can’t.I have ________homework to do and I’m _______tired..
_______it is not far from my home to school, _____I usually ride my bike to school.
--What do you think of Tom?--He is a man of______words. He always stays alone(独自地).
--The number of the students in our school very big.--About 9 students.
Yesterday the teacher told us that the earth ________around the sun.