Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs corrections.
Câu 1: To attract someone’s attention we can use either verbal and non-verbal forms of communication.
A. To
B. use
C. and non-verbal
D. communication
Câu 2: The assumption that smoking has bad effects on our health have been proved.
A. effects
B. have been proved
C. smoking
D. on
Câu 3: Dogs that are trained to lead the blind must be loyalty, intelligent and calm.
A. loyalty
B. the
C. trained
D. Dogs that
A.
B.
C.
D.