桥台的作用之一是( )。
A．连接桥跨与路基 B．连接相邻桥跨C．连接立柱和承台 D．连接台帽与基础
参考答案：A
I can ___________ the clothes. [ ]
A. put
B. put away
C. away
I_______ the piano for two years.
A．have bought
B．will buy
C．am buying
D．have had
