Correct grammar mistakes. 1) I had reading a magazine by 6 o'clock. 2) They have written a test by that time. 3) While he were sleeping, Helen phoned

Correct grammar mistakes. 1) I had reading a magazine by 6 o'clock. 2) They have written a test by that time. 3) While he were sleeping, Helen phonedhim 4) She was play chess at 5 o'clock. 5) The spaceship was launch in 1982. 6) Last spring the flood had destroyed half of the town.