THE ROOM IS TOO DIRTY. IT ________ NOW.A. SHOULD CLEAN B. SHOULD H...

14. - ON TAP KIEM TRA 1 TIET SO 2
ON TAP KIEM TRA 1 TIET SO 2

14. The room is too dirty. It ________ now.

a. should clean

b. should have cleaned

c. should be cleaning

d. should be being cleaned