NAM WAS ABSENT FROM CLASS YESTERDAY ____ HE FELT SICK .A. SO B. BEC...

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

4. Nam was absent from class yesterday ____ he felt sick .

a. so

b. because

c. although

d. but