What a pity! I ______ in Hainan two more days, but something urgent needed to be dealt with back home.
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.
She married an Australian man and became a (n) citizen of that country.
his homework, Little Tom has to stay in his room for another hour.