_____ well prepared you are, you still need a lot of luck in mountain climbing.
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.