1. Hilary bought this car because of its low price.
2. Phyllis like to talk to Olivia because she is friendly and honest.
3. As Jane was ill, she didn't go to school yesterday.
4. Because Anne had difficulties in financial, she could not go to university.
→ have difficulty in sth: gặp khó khăn về thứ gì đó
5. Because of being careless, Tim lose his job.
6. We didn't need to bring any warm clothes for our holiday beause it was very hot.
→ not necessary for sb to do sth = not need to do sth
7. As she was ill, she couldn’t come to class.
⇒ As/Becaue/Since + S + V, S + V: Bởi vì ...
= Because of + N/V_ing, S + V