Ex 3
`1`. He said he didn't know what had happened.
`2`. She said she had gone to the doctor the day before.
`3`. He said he had a toothache.
`4.` She said she would write him a precription.
`5.` They said they were going to the drug store.
`6`. He said the doctor had given him some pills.
`7`. She said she went to the supermarket everyday.
`8.` He said he had received the envelope.
`9`. They said they had visited Cannery Row.
`10`. She said she felt very sick.
Ex 4
`1.` Nam said that his uncle often planted the vegetables in the afternoon.
`2`. She said that her uncle would not plant the vegetables the following afternoon.
`3`. Nga said that Mr and Mrs Pike had just read those newspapers.
`4`. She said that she often listened to music at night.
`5.` Lan’s mother said that her daughter usually brushed her teeth before meals.
`6`. They said they had to do the assignments then.
`7`. Lan said that her sister seldom rode a bike to school.
`8`. They said that their teacher sometimes explained the difficult lesson
`9`. Nam said that he was doing his homework then.
`10`. He said that his son would be there soon.
`11`. They said that they had never been defeated.
`12.` She told me that she was going to the party with her mother.
`13`. They said that they had plenty of time to do their work
`14`. They declared that they should continue to fight till the final victory.
`15`. He told them at once that the train had gone and we were too late.