Resposta :
A) He can't play tennis.
B) I can't see well.
C) We couldn't write fast.
D) They couldn't speak fluently.
Nesse tipo de exercício, basta adicionar "not" (no caso can't e couldn't) após os verbos auxiliares (can e could).
Resposta:
A) He can't play tennis
B) I can't see well
C) We couldn't write fast
D) They couldn't speak fluently
Explicação: