( PRESENT PERFECT <=> SIMPLEPAST )
1. How long did michelle know you?
2. When did your family move to HCM city?
3. How long ago did you see tom?
4. How long is it since your son started listening to music?
5. How long ago did you start swimming in the pool?
6. We have not been on a ship before.
7. I haven't read this book before.
( SO/SUCH/TOO/ENOUGH)
1. The water is not clean enough for us to swim in this river.
2. The game is not easy enough for the children to play.
( REPORTED SPEECH)
1. He told us we were his best friends.
2. The children said that they were waiting for the school bus.
3. The chilren said that most of them had difficulty in learning English.
4. Charilie told helen he hadn't seen kate recently.
#NOCOPY