3. Make the statements negative. a. They've sold their house. b. We've been waiting for a long time. c. She's revising for her exams. d. When she phoned, I was having a shower e. She needs a computer for her job. f. The telephone was invented in the 20th century. g. I'd already packed my suitcase when he came home. h. It's an interesting book. i. My mother bought presents for everyone. j. I'll be watching TV

a. They have not sold their house. b. We have not been waiting for a long time. c. She is not revising

for her exams. d. When she phoned, I was not having a shower e. She does not need a computer for her job. f. The telephone was not invented in the 20th century. g. I had not already packed my suitcase when he came home. h. It's not an interesting book. i. My mother did not buy presents for everyone. j. I will not be watching TV