【正文】
( D級) 練一練( C級) It have been Tom that parked the car here, as he is the only one with a car. A. may B. can C. must D. should He did not reget saying what he did but felt that he it differently. A. could express B. would express C. could have expressed D. must have expressed Step III 課后小結(jié) 。 6. He used to be quite rich but something must have happened to him, probably problems with drink. 譯文: must have done 表示對過去事情肯定的推測,意思是 只用于肯定句中。 練一練:( D級) The mother didn’t know to blame for the broken glass as it happ