Question

海南三亞一中月考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：發(fā)現(xiàn)解決這個問題如此困難，所以我答應向湯姆咨詢一下。So位于句首，應使用部分倒裝。另外本句用過去時態(tài)。