Giúp em gấp ạ
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11. What does the sign mean?
A. You can swim here.
B. You can't swim here.
C. You should swim here.
D. You swim here.
12. What does the sign mean?
A. People should aoss the road at the crosswalk.
B. People can't cross the road here.
C. People are crossing the road at the crosswalk.
D. People shouldn't caross the road here.