could would can

Do you need help? How ___ I help you with that?

• can

• would

I don't understand, ___ you please explain this?

• would

• could

She said we ___ borrow her bike if we are careful.

• could

• would

___ you like to come over for lunch?

• could

• would

___ you like to ask my sister?

• would

• could

___ I come round to your house?

• would

• could

___ I get you some water?

• would

• could

___ you mind passing me the salt?

• would

• could

Which one of these is not as polite, is less formal?

• could

• would

• can

___ you please pick me up later

• would

• could