cho 2 ▲ ABC và ▲ PMN có AB=PM BC=MN AC=PN

a) C/M ▲ ABC=▲PMN

b)C/M BAC=MPN

(giúp mik lẹ với mai mik kt rồi)

Change the following sentences into passive voice.

1→ They were cleaning the room when I drive.

2→ Does Egypt export cotton ton many countries.

3→ Somebody must do something for these poor men.