Question

海南三亚一中月考3，24）So difficult _______it to work out the problem that I decided to ask Tom for some advice.

A．I did find                   B．did I find            C．I’ve found              D．have I found

Answer 1

B

解析:

句意：发现解决这个问题如此困难，所以我答应向汤姆咨询一下。So位于句首，应使用部分倒装。另外本句用过去时态。