16. Chi loves her husband so much; A. So 17. Do you want to join us A. and 18. I loves cats, A. and 19. I put on a sweater, A. and B. however B. for my mother doesn't allow me to have one. B. or CC. but It was cold outside. C. but I would have been here earlier. B. otherwise your do you want to leave now? B. or C. but she doesn't get along well with her mother-in-law. D. Therefore C. but 20. I missed the bus; A. however 21. You need to put more effort into work; D. or D. so D. so D. although C. therefore you won't get a passing grade.