A sheep _____ on this kind of special grass usually grows much faster than ____on ordinary.
I don't know this part of the countryside well, so we’d better ___ the path.
The news soon ___ its way throughout the country.
Now even the middle school students go abroad for study ___.
This dictionary is very useful. It has ___ many problems about works and idioms for me.
It's foolish to go to the ___ of taking music lessons if you never practise.