写出所给单词的正确形式。

1．My____________(shoe) are under the bed.

2．— Please have a_____________(sit). — Thank you.

3．My bag is old. What about___________(you)?

4．______________(Who) sweater is this?

5．They are white. Please colour______________(they) red.

6．They are the______________(twins) books.

7．It___________(look) like a hat.

8．Excuse_________(I). Are these your coats?

9．The door is____________(lock).

10．Let us__________(look) for a pen.

商业银行承诺在未来某一日期按照事先约定的条件向客户提供约定的信用业务是( )。

A．承诺业务

B．代理业务

C．资金业务

D．担保业务