Ответ:
2.
1. tighten
2. shorten
3. memorise
4. enable
5. enlarge
3.
1. Mary said that she had bought a new printer the day before
2. John said that he was writing an essay at that moment.
3. Carry thought the batteries were flat
4. The policeman said that I had to wear a crash helmet
5. My mother told me to turn off the stove
6. Paula asked me if I could change the password
7. Tony asked me what colour headphone I had chosen
8. My parent told me not to buy useless gadgets.
4.
1. back
2. on
3. up
4. about
5.
1. at
2. in
3. under
4. at
5. on
Объяснение: