用适当的介词填空15.Are you good _________ maths? Yes,I am. What abou

用适当的介词填空
15.Are you good _________ maths? Yes,I am. What about you?
14.The boy is waiting________a bus __________ the bus stop.
13.The sun is far__________the earth. The moon is near _______the earth.
12.What is the matter______you,young man? I have got a headache.