Susan didn't finish the job on time.  Now  Mr Brown realizes that he ______ too much of   her then.

A．is expecting

B．expected

C．expects

D．would expect

银行业金融机构受自身业务特点和政府法令的制约，除金融控股公司外，银行业金融机构一般仅限于投资政府债券和金融债券，而且通常以短期国债作为其超额储备的持有形式。( )