CAN, COULD, CAN´T AND COULDN´T

She was very clever. She ____ solve any problem.

• Could

• Can

• Both

____ you play the piano when you were young?

• Can

• Could

• Both

She ​ is a chef. So she ​____ cook many​ dishes.

I ​____ open this ​because I haven´t got a corkscrew.

• can´t

• couldn´t

They ​ ​____ travel yesterday.

We thought we __ help you.

May mother ____ walk for a long time, she often takes a taxi.

• couldn´t

• can´t

You ____ have cooked dinner, but you didnn´t.

• can

• could

It´s ranning, so I ____ ride my bike.

• can´t

• couldn´t

You ____ park here. It´s forbidden.

• couldn´t

• can´t