你想知道对方的职业,可以问:A. Where are you?B. Are you a teacher?C. What’s your job?
Leaves must ____________ green to make food for plants and trees. A. is B. be C. are
They ____________ sunlight,air,and water. A. need B. needs C. needes
What do they need ____________ food? A. to make B. make C. making
—____________ is it? —It's yellow. A. Which color B. What color C. What
I'm really sad because I ____________ my bike. A. use B. lost C. loses