BEFORE YOU GO TO BED, PLEASE TURN …………. ALL OF THE LIGHTS. A.ON B...

10. - DE THI T A 9 HOC KI II CO MA TRAN DAP AN
DE THI T A 9 HOC KI II CO MA TRAN DAP AN

10. Before you go to bed, please turn …………. all of the lights.

a.on B. in C.off D.over

II. Using who / which to combine each pair of sentences: ( 1 m)