Давайте разберем это задание по английскому языку, которое связано с формами глагола "could" в положительных и отрицательных предложениях.
Для каждого предложения вам нужно выбрать правильную форму глагола:
If people could not sing, the world would be quiet.
If I were a bird, I could fly. (Нельзя заменить на "able to fly" в этом контексте)
They could relax after school was over.
My parents could always rely on me when I was younger.
If you could help, I would be grateful.
If only I could earn 1 million dollars!
My cousin in France could speak English fluently.
You could say that I am a dreamer.
The baby could not eat solid food yet.
If we could read each other’s minds, life would be interesting.
If I were you, I could ask her now.
He could not have done such a thing.
Schools could begin if all students had arrived.
My friend could help me move the furniture yesterday.
If I could enter a good university, my future would be bright.
Упражнение предполагает использование формы "could" для выражения возможности в разных временных контекстах (прошлом, настоящем или условном).