--_______does it take you _______to school every day? –About twenty minutes.
-----Do you know how long the diameter of the Mars? -----It’s didmeter is 53%_____that of the earth?
I swam in the river and caught a small fish yesterday afternoon.----_____
---how many students are there in the classroom? ---_____Idon’t know where they have gone.
Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it.
I _____ this book for two weeks. I have to return it now.