Question

помогите пожалуйста с этими заданиями

Answer 1

1 can 2 couldn't 3 can't 4 couldn't 5 could, can;t 6 Could 7 can can't 8 can't 9 couldn't 10 could 

Mark could speak seven foreign languages perfectly well by the age of fifteen. 
Could you use a mobile phone when you were four?
When my mum was a little girl, she could swim well. 
Nobody could climb trees at the age of three