TO BE GOOD AT/ BAD AT + N/ V-ING

38. - DE THI TONG HOP TIENG ANH 12
DE THI TONG HOP TIENG ANH 12

38. to be good at/ bad at + N/ V-ing: giỏi về.../ kộm về...

e.g. I am good at swimming. e.g. He is very bad at English.