5. I'd like to play soccer with you however I have to finish my homework first.
6. The Australians enjoy Christmas althought Christmas season is in summer.
7. He likes playing chess and watching TV.
8. Hurry up or We'll be late for the bus.

1. Ba got wet. He forgot his umbrella (because)
=> Ba got wet because He forgot his umbrella
2. It's raining. I can't go to the beach. (so)
=> It's raining so I can't go to the beach.
3. Nam is very tired. He has to finish his homeword before going to bed. (however)
=> Nam is very tired however He has to finish his homeword before going to bed.
4. Hoa didn't pass her Math test. She had to do the test again. (so)
=> Hoa didn't pass her Math test so She had to do the test again.
5. I'd like to play soccer with you. I have to finish my homework first.(however)
=> I'd like to play soccer with you however I have to finish my homework first.
6. The Australians enjoy Christmas. Christmas season is in summer. (although)
=> The Australians enjoy Christmas althought Christmas season is in summer.
7. He likes playing chess. He likes watching TV. (and)
=> He likes playing chess and watching TV.
8. Hurry up! We'll be late for the bus. (or)
=> Hurry up or We'll be late for the bus.