AT THE CROWDED PLACES, WE OFTEN SEE THE SIGN

18. - 70 DE THI CHUNG CHI B TIENG ANH
70 DE THI CHUNG CHI B TIENG ANH

18. At the crowded places, we often see the sign: "... for pick pockets!"

a. Watch up

b. Watch on

c. Watch out

d. Watch at

c