----Sir, I put my bag on the desk but now it is gone . ----Don’t worry. _____.
21.--- This kind of cloth ____ well and____ long, besides, it’s cheap. --- OK, I’ll take it.
20.I ____ ten minutes to decide whether I should reject the offer.
19.The police found that the house ____ and a lot of things ____.
18.He injured his leg and ______ couldn’t play in the game.
17._____ at the gate of the theatre, he found the ticket for the play was left at home.