单项选择题

The manager said that there were two reasons ______ our sales dropped sharply last year.

A．because
B．since
C．why
D．while
<上一题 目录 下一题>
热门 试题

单项选择题
Few companies are interested in providing the software we need ______ the market is small.
A．although
B．since
C．so that
D．as if
单项选择题
By the time you get to the office I ______ all the documents for the meeting.
A．was preparing
B．prepared
C．had prepared
D．will have prepared
相关试题