Apple’s i Phones _____easy to learn. Many young people can use them well.
—Come back quickly, Tom. —Sure, Mum. _______.
—It’s dangerous to swim here. Look at the sign. —Oh, I _______ notice it. Thanks for telling me.
He never ________ no matter how many difficulties he has.
— _______ can we get there? —In five minutes.
This is the school _______ I studied three years ago.