Travelling west, you set your clock ______; travelling east, you set it ahead.
Thomas wants to know ______Nina lives.
—Did you see Peter and Mike? — No, I saw ______of them.
When you don’t know a word, you can _________ in the dictionary.
— It's so cold today. — Yes, it'scolder than it was yesterday.
My mother isEnglish teacher in No. 2 Middle School.