_____ SHE WAS VERY TIRED , SHE HELPED HER BROTHER WITH HIS HOMEWORK...

2. - TRAC NGHIEM VE LIEN TU TIENG ANH
TRAC NGHIEM VE LIEN TU TIENG ANH

2. _____ she was very tired , she helped her brother with his homework .

a. Because b. whether

c. Although c. so