挑出不同类的一项。A.ruler B. it C. I
A: Shall we go to the zoo? B: ________
A: It's seven in the morning. B : Shall we ________ ?
A: It's ten.You're late. B: ________ .
A: What time do you ________ ? B: ________ .
A: ________ ? B: It's six ten.