Make the sentences negative and interrogative. 1) She can tell me everything about it. 2) We must come to school in time. 3) They could prepare the project yesterday. 4) We may take the ball to play. 5) My sister has to tidy her room. 6) You should read this article. 7) Eddy had to walk the dog in the afternoon. 8) We can help her with the work. 9) She should put her coat on. 10) You must follow the instructions.​