She is busy_________ her lessons. A: prepare B: to prapare C: preparing

The secretary worked late into the night, ______a long speech for the president. A: to prepare B: preparing C: prepare D: was preparing

Linda did not have time to go to the concert last night because she was busy ______ for her experiment. A: to prepare B: to be prepared C: being prepared D: preparing

All the afternoon my colleagues and I_____a report in the meeting room. A: prepare B: were to prepare C: have been preparing D: had been preparing

______, she stood at the front door, waiting for her husband to return. A: Being finished preparing dinner B: Having finished preparing dinner C: Finished preparing dinner D: Having finished to prepare dinner