Câu hỏi : Khoanh tròn vào liên từ thích hợp để hoàn thành những câu phức dưới đây ----- Nội dung dịch tự động từ ảnh ----- 6. They have worked at this company (when/since) they graduated. 7. At 8 pm last night, I was doing my homework (when/while) my sister was playing with her toys. 8. (Before/After) I had eaten my breakfast, I went to school by bus. 9. (Although/Despite) Mary looks thinner than me, she is much stronger than me. 10. They didn’t come to the party (since/as soon as) they were too busy. 11. You should bring your raincoat (unless/in case) it rains. 12. I didn't realize her new hair (when/until) she told me. 13. I won’t accept this job (even if/if) the offer me high salary. 14. My father will buy me a book (even though/as long as) I pass the exam. 15. I like her (when/even though) she’s annoying sometimes.