—What about your self­drive trip yesterday?

—Tiring！The road is being widened，and we________a rough ride.    (2013·江苏，34)

A．had

B．have

C．would have

D．have had

与地面的间距( )

A．不小于5厘米
B．不小于10厘米
C．不小于15厘米
D．不小于20厘米
E．不小于30厘米