—Jack,I have________working out the math problem.—Don’t worry.Let me help you.A.funB.troubleC.experience
—What’s _______ name?—_______ name’s Gina.
_______ name is Eric and ______ name is Mary.
This is Ms. Liu. ________ is my friend.
不明飞行物的英文缩写是_______。
— —M-A-P.