bài 3:
1. g
2. a
3. f
4. c
5. b
6. h
7. e
8. d
bài 4:
1)Jim was absent from class yesterday.he was suffering from a bad cold
=> Jim was absent from class yesterday because he was suffering from a bad cold.
2)They decided to move their house.they don't have to travel a long distance to work
=> They decided to move their house so (so that) they don't have to travel a long distance to work
3)mary heard her fingers yesterday.she was preparing dinner
=>Mary hurt her fingers yesterday while(when) she was preparing dinner
4)At 4pm yesterday,my mother was cleaning the house.I was looking after my younger brother
=> At 4pm yesterday, my mother was cleaning the house while I was looking after my younger brother.
5)They decided to go an excursion.They want to get away from work stress
=> They decided to go an excursion since/because they want to get away from work stress.
6)my father taught me how to use the computer.before that, I did't know how to use it
=> I didn't know how to use the computer until my father taught me how to use it
7)I arrive at the station.I will call you right after
=> I will call you as soon as I arrive at the station.
