Viết lại câu nghĩa không đổi: I did the homework, then i went to bed ->Before

1 i did the homework , then i went to bed
-> before 
2 she did the test . First she read the questions very carefully
-> after
3 they couldn't go to class on time because it was raining heavily
-> because of
4 in spite of his poverty , he tried to study hard 
-> though
5 although it was snowy , all the students went to class on time
-> in spite of 
6 they visited Dalat many times because of enjoying fresh air and friendly people here 
-> because
7 i was working with a woman . She used to be a lawyer
-> the woman 
8 mary let the windowa open when she was out . this was very careless of her (use which) 
->