when did your father____shanghai?last night.___i got to the airport,he had left.
A.arrive at.when B.get to,by the time C.reach to,by the time D.before
2.____you ever_____late for class?yes.why____you late?A.have,been,have been
B.DId,be,were C.Have,been,have been D.Did,he,have been 要思路