WashingtonD.C(华盛顿)is ____of America. A. a capital B. capital C. the capital D. an capital
---Excuse me,Can this magazine be taken out of the reading room? -----,———you can only read it here.
-----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.