At the time of the earthquake Jeff was s
题型:选择题
问题:
At the time of the earthquake Jeff was still in his office. He ________ to finish a project before he left for the day.
A.has tried
B.had tried
C.has been trying
D.had been trying
At the time of the earthquake Jeff was still in his office. He ________ to finish a project before he left for the day.
A.has tried
B.had tried
C.has been trying
D.had been trying