1.We () here two hours ago.We () here for tow hours A.have arrived,have been B.have come,have been
接：C.came,have come D.arrived,have been
2.Though it was late,()he went on with his work
A.but B.and C.soD.\
3.We will havea () holiday after the exam
A.two month B.two-months C.two-months D.two months