1. I want to have more books. I work part-time to earn extra money. (because) _________________________________________________________________________________ 2. She was very tired. She could not stand up. (so.that) _________________________________________________________________________________ 3. I think its supposed to rain today. You should bring your umbrella with you. (so) __________________________________________________________________________________ 4: Many people think there is no city in Vietnam that is cleaner than Da Nang City. (the) => 5: David has a good relationship with most of his colleagues. (gets) => 6: My son was ill. I had to take a day off to look after him. (so) .........................................................................................................