Progress has been very good so far．We are， , confident that the work will be pleted as expected．
A. however
B. therefore
C. besides
D. otherwise
网友回答
A. however
(答案→)B. therefore
C. besides
D. otherwise
解析：A．however然而，B．therefore因此，C．besides此外，D．otherwise否则，句意：到现在为止一直进展得很好，我们很自信工作会象预期的那样被完成。所以选B。