Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it.A. be stopped to throwB. be stopped from throwingC. stop to throw
It _____that this method didn't work well.
There is a hole _____ the wall. The wind is blowing in ______the hole.
His grandfather joined the Party in _______and passed away in ______.
—You _______be excited that you are going to get the award. — I can't wait for it.
Helen __________Gray ______ she left college.