题目内容：

pleasant as they made it_____in Yangzhou,we felt tired after the long journey.
A.to travel
B.travel
C.traveled
D.traveling
为什么?

优质解答

A,
虽然旅行很舒服,但我们长途旅行后很累
形容词在前引起倒装
as they made it作插入成分,to travel 做主语,it 做形式主语.