THE STUDENTS ARE WORKING HARD …….THEY WANT TO PASS THE EXAMS EASILY....

6. - DE THI HK II ANH 9 CO DAP AN VA MA TRAN
DE THI HK II ANH 9 CO DAP AN VA MA TRAN

6.The students are working hard

……

.they want to pass the exams easily.

a.because

b.therefore

c.so

d.but