have been learning - has learned - have learned ) five books. Been ( has slept - has been sleeping - is sleeping ) for six hours. He has ( sell - sold - selling ) nine cars. My friends have been travel - traveled - travelling) for three months. 5- This box is too small. I need a big that one-one-ones). I don't like the brown shoes but I like the black ( that one-one-ones) rackets (Smoke - Smoking - Smokes ) is very bad for your health. 2. Work - Works. Working) as a nurse can be very tiring. She is interested in (become - becomes - becoming) a doctor. 4. We love (play-plays- playing) with our dad. If she (heat-heats - heating water, it boils. If he study - studies - studied ) hard, I will succeed