_______ the programme, these workers have to stay there for another two weeks.
| A．Not completing | B．Not completed |
| C．Not having completed | D．Having not completed |
21.--- This kind of cloth ____ well and____ long, besides, it’s cheap.
--- OK, I’ll take it.
| A．washes ; lasts | B．is washed; lasts | C．washes ; is lasted | D．is washing; is lasting |
20.I ____ ten minutes to decide whether I should reject the offer.
| A．give | B．was given | C．was giving | D．had given |
19.The police found that the house ____ and a lot of things ____.
| A．has broken into ; has been stolen |
| B．had broken into ; had been stolen |
| C．had broken into ; stolen |
| D．had been broken into; stolen |
18.He injured his leg and ______ couldn’t play in the game.
| A．therefore | B．however | C．in which case | D．in this way |
17._____ at the gate of the theatre, he found the ticket for the play was left at home.
| A．To arrive | B．On arriving | C．As arriving | D．While arriving |