A performer means that an actor plays a _________ in a movie.
| A．rule | B．role | C．rude | D．ring |
Do you come here ____ your car?
| A．on | B．in | C．by | D．into |
—_____must I take this medicine every day?
—Three times a day.
| A．How long | B．How often | C．How far | D．How |
— I hear you have got an opportunity _________ at the children’s hospital.
— Yes, I love children and it will be a good experience for me.
| A．to volunteer | B．helping | C．volunteering | D．to teach |
— I really can’t ______ which sweater to buy.
— Maybe I can help you. You look smarter in that blue one.
| A．know | B．remember | C．choose | D．allow |
— Do you want to have your ears ________?
— No, my parents don’t allow me to do so.
| A．pierce | B．piercing | C．to pierce | D．pierced |