_________ are shoes.[ ]
A. That
B. This
C. These
答案：C
— Did you see Tom at the party?
— No, he ______ by the time I got there. [ ]
A. left
B. was leaving
C. had left
D. has left
证券经纪业务的基本要素不包括______。
A．市场席位进入 B．结算清算C．账户管理 D．提供证券投资建议
