Modals of possibility and ability

They left London at three o'clock so they________________ be here by now.

• must

• could

• might

We ____________ not climb those mountains when we were kids.

• can´t

• couldn´t

• don´t need to

They left London at three o'clock so they________________ be here by now.

• must

• could

• might

I_________to run 10km in 40 minutes.

• am able

• can

• can't

Maybe your keys are in your pocket.

Your keys ___________ in your pocket.

• Must

• Can

• Could

________ you swim when you were 10?

• Can

• Could

He’s amazing, he _____ speak 5 languages including Chinese.

• Can

• Could

I __________ drive a car until I was 34, then I moved to the countryside so I had to learn.

• can't

• couldn't

She’s 7 years old but she ________ read yet

• can't

• couldn't

Do you think we______ park over here?

• be able to

• can

• can't

• could