13.About 90 percent of the equipment presented by the administration,as well as the facilities of our own, ______made good use of in teaching.
The athlete hurt his foot in the race.,he missed the champion.
When I passed the garden, I saw the boy under a tree, .
The visiting professor offered us some advice, of great help to our English learning.
He gave a lot of presents to his friends, but never one to me.
In spite of his own safety, the boy, , jumped into the river to save the girl in the water.