The pipes have oil or water, which is heated and sent to the storage tank until to produce electricity.
—Your sister nearly _____ all her spare time to her study during the three years. —That's right, or she _____ the first place in her school in the College Entrance Examination.
He always works hard, but__________, he didn't pass the exam.
The book_______well.
On _______ side of the river there are a lot of trees.
At last she made herself ______ by drawing a picture.