Условие задания:

3 Б.
Read these sentences and write could, couldn’t or managed to. Use only one modal verb for the sentence.
  
1. My mum travelled a lot. She ____ speak four languages.
 
   
 
2. I looked very carefully and I _____see somebody in the distance.
 
   
 
3. My grandmother loved music. She _____ play the piano well.
 
   
Источники:
englishwithatwist.com
Raymond Murphy. English grammar in use- Cambridge: CUP, 379p