Could-couldn't

____could I help you?

• What

• How

• Which

We are going to fail! We ______ finish the project tonight.

• could

• couldn't

Could you please_____________?

• open the window

• drink water for me

• work yesterday

He could win____________________________.

• the competition if he trains more.

• lots of money if he doesn't play the lottery

• nothing if he competes.

I______ do that. It is too difficult!

• could

• couldn't

If the bus doesn't come you________ take a taxi.

• could

• couldn't

Mom: What? You came by walking?

David: Yes, We did.

Mom: You _____have called me and I will pick you up.

• couldn't

• could

In junior high school (secondary) I ________understand English classes, but now I do.

• could

• couldn't

Which sentence is correct?

• She could work in the company if she has the training.

• I couldn't see the video tomorrow.

• Could they came to the party?

I _____ go to the party because I was sick.

• could

• couldn't