询问别人的年龄,你应该说:A. How old are you? B. How are you?
There a pen and twelve books . A. is B. am C. are
there are some birds the tree. A. in B. on C. at
They have four lessons Tuesday. A. in B. on C. at
Sam is happy see you again . A.with B. for C. to
It’s a quarter _________ twelve in the morning.A. past B. atC. to