来自李会莹的问题
IwassointerestedinthevideothatI______itfortwohoursbeforeIrealizedit.(2分)A.watchedB.hadwatchedC.waswatchingD.shallhavewatched
IwassointerestedinthevideothatI______itfortwohoursbeforeIrealizedit.(2分)
A.watched
B.hadwatched
C.waswatching
D.shallhavewatched

