I didn’t quite follow him because he explained the theory _____that is too abstract for me.
Mr.Smith sold that magnificent cottage of his on the sea 2,000,000 dollars.
___________lessons were not difficult.
—You don't seem to be quite yourself today.What's wrong? —Oh, I'm suffering from a cold.Nothing serious,
The most favorite room is the tidy study with a fireplace, we can watch TV and enjoy the nice scenery outside.
I often have conversations with John over telephone, while keep in touch with Tom by__________ letter.