Помогите пожалуйста ​

Question

Помогите пожалуйста ​

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Answer 1

1 hard, tough, difficult

2 know, distinguish, find out

3 glad, jolly, joyous

4 well-known, prominent

Answer 2

1).Difficult.

2).Know.

3).Happy,Glad or Funny.

4).Well-known.