The young man was lying on the grass with his horse _____a tree.
The illness from which Mary is suffering has now been _____ as hepatitis (肝炎).
How can we get this language point _____ to the students.
If the boy had _____ the dog alone it wouldn't have bitten him.
We all knew from the very _____ that the plan would fail.
He was afraid that the branch might bend over and break, and he would be sent _____ to the ground.