CBOT5年期美国中期国债期货合约的最后交割日是（）。

A.交割月份的最后营业日

B.交割月份的前一营业日

C.最后交易日的前一日

D.最后交易日

按要求改写句子。

1. Mike has breakfast at six in the moming. (改为否定句) 

    Mike ____ ____ breakfast at six in the morning.

2. There's some milk in the glass. (改为一般疑问句) 

    ____ there ____ milk in the glass?

3. She helps her mother do the housework. (改为同义句) 

    She ____ her mother ____ the housework.

4. We can see five glasses of water on the table. (对画线部分提问)

    ____ ____ glasses of water can you see on the table?

5. I think I can mend it. (改为否定句)

    I ____ think I can mend it.

6. Lin Tao often helps me with my Chinese. (对画线部分提问) 

    ____   ____   ____  Lin Tao ____ you with your Chinese?