______ appeared to be coming from the science lab next door. A. The unpleasant odor of burning plastic B. The odor unpleasant of burning plastic C. The unpleasant odor of plastic burning
______ appeared to be coming from the science lab next door.
A. The unpleasant odor of burning plastic
B. The odor unpleasant of burning plastic
C. The unpleasant odor of plastic bur
D. The odor unpleasant of plastic burning