The girl likes __________ draw pictures.[ ]
A. to
B. in
C. at
答案：A
回答问题。
1. Where do you write on a postcard?
____________________________________________________________
2. Where do you put the address on a postcard?
3. Where do you put the stamp on a postcard?
企业获准质量管理体系认证的有效期为( )年。
A．3
B．5
C．8
D．10
