HE NEVER GOES TO BED ______ HE FINISHES HIS HOMEWORK. A. UNLESS (...

131. - DAP AN TIENG ANH CONG CHUC QUANG NGAI 2017
DAP AN TIENG ANH CONG CHUC QUANG NGAI 2017

131. He never goes to bed ______ he finishes his homework.

A. unless (n u không, tr phi) B. when

C. while D. if