地壳中含量最多的金属元素是
A：氧
B：硅
C：铝
D：铁
A. It's Monday.
B. Yes, I can.
C. He can dance for the party.
D. I can wash the clothes.
E. I have a computer class.
— Wow, your school is great!
— It is _______ school in the city.
