6, -She wore a coat because the weather was cold
-The weather was cold so she wore a coat
7, -Because the performance was long she felt sleeply
-The performance was too long that she felt sleepy
8, -He carried the bed on to the roof of his house because the weather was hot
-The weather was hot so he carried the bed on to the roof of his house
9,- We couldn't stop laughing because the play was funny
-The play was funny so we couldn't stop laughing
10, -They stayed at home because of the heavy rain
-It rained heavily, so they stayed at homee
Chúc bạn học tốt!