动词时态、语态习题（求答案）甚急!

动词时态、语态习题（求答案）甚急!最好有解释,比如为什么要选此选项.勿乱答,我已有标准答案.5.She ought to stop reading; she has a headache because she _______ too long.A.had read B.read C.is reading D.has been reading6.------You’re talking too much.-------Only at home.No one ______ me but you.A.is hearing B.had heard C.hears D.heard7.-------What have you been doing?I asked you a question.Why didn’t you answer?-------Sorry,I ___________ to the news on the radio.A.listened B.have listened C.was listening D.had listened8.-------You should have told him the date earlier.-------I_______,but he forgot about it.A.did B.have C.had D.should have9.------You could have asked Tom for help,for he is good at physics.-----Really?Oh,a whole night __________.Why didn’t you tell me earlier?A.is wasted B.was wasted C.had wasted D.has wasted10.The thief tried to break away from the policeman who __________ him but failed.A.held B.had held C.would hold D.was holding11.You _________exercises at your desk!Why not take some exercise?A.always do B.are always doing C.have always done D.have always been doing12.----What were you up to when she dropped in?----I ____ for a while and ____some reading.A.was playing; was going to do B.played; didC.had played; was going to do D.had played; did13.Until then I _______ for him for hours in his office.A.waited B.was waiting C.have been waiting D.had been waiting14.-----Did you see Marty in the manager’s office?-----Yes,he ______ by the manager.A.is questioned B.was being questioned C.had been questioned D.was questioned15.Look at this I _______ some magazines and _______ this card!A.was looking through; found B.am looking through; had foundC.looked through; had found D.had looked through; finding16.------Tom’s wife took the place of him to attend the conference.-------I would rather Tom _______ there,not his wife.A.had been B.have been C.was D.went17.-------Listen!------I _______ but I _________ anything at all.A.listened; have heard B.have listened; hearC.was listening; wasn’t hearing D.am listening; don’t hear18.The shop assistant promised me that the material ______ and what she said ______ to be true.A.would be dried easily ; was proved B.will be dried easily; was provedC.dried easily; proved D.was dried easily; proved19.-----What place is it?-----Haven’t you seen that we _____ back where we ______?A.were,had been B.are,were C.were,have been D.are,had been