There is still much to discuss. We shall return to this issue at our next meeting.A. h

问题补充：

There is still much to discuss. We shall, , return to this issue at our next meeting.

A. however

B. otherwise

C. therefore

D. instead

答案：

A. however

B. otherwise

(答案→)C. therefore

D. instead

解析：考查连词。句意：还有许多问题要讨论。因此，我们将要在下次会议上回到这个主题。However尽管如此；otherwise否则；therefore因此，所以；instead相反。故C正确。