Teenagers are supposed to ________ their seats to the old on bus.
| A．pass | B．offer | C．sell | D．provide |
To ______________something is to produce or design it that has not existed before.
A. invent B. discover C. Find
To______________ one’s salary is to make the salary become twice as much as before.
A. double B. increase C. cut
A ______________ is the award given to the winner of a game.
A. gold B. prize C. Present
A __________ is a small book used for writing notes in.
A. guidebook B. notebook C. Textbook
—___ has your cousin lived in your home?
—____Monday.
| A．How long; Since | B．How often; On |
| C．How soon; From | D．How many days; For |