Question

 Progress so far has been very good.      , we are sure that the project will be completed on time.

A．However                   B．Otherwise

C．Therefore                   D．Besides

Answer

 C

【解析】此题考查副词的用法。However意思是“无论如何，不管怎样”Otherwise意思是“否则、要不然”；Therefore意思是“因此、所以”；Besides意思是“并且、而且、还”

【考点】副词的用法

【易错点】不能准确的使用副词

【备考建议】熟悉并掌握一些副词的区别。