My mother often tells me _______ my classmates when they need.
A.help B.to help C.helping
My sister is very lazy. She _________ helps my parents with housework.
| A．usually | B．always | C．often | D．never |
Who listens _____, in your class?
| A．the most carefully | B．more carefully |
| C．the most careful | D．more careful |
--- What’s the use of this kind of fuel(燃料) ?
--- It can make the train __________ fast.
| A．to go | B．going | C．went | D．go |
—Must we finish the project in a month?
—No, you _______.
A. mustn’t B. needn’t C. can’t
— Who taught ________ Japanese ?
— I learned it by _________.
A. you ; myself B. your ; me C. yourself ; myself