Ⅰ.用所给动词的适当形式填空
1.Excuse me,I (not realise) I was blocking your way.
答案:didn’t realise
2.We (work) on this task for four hours.Let’s have a rest.
答案:have been working
3.I have to go to work by taxi because my car (repair) at the garage.
答案:is being repair
ed
4.Ladies and gentlemen,fasten your seat belts please.The plan (take off).
答案:is taking off
5.The machine (not work).It hasn’t worked for years.
答案:doesn’t work
