As is natural , a man as old as he ______ be very forgetful.
| A．can | B．should | C．would | D．must |
alarm（）
| A． |
reward |
B． |
dollar |
C． |
towards |
D． |
farmer |
complete
| A．scene | B．elect | C．student | D．respect |
citizen
| A．uncle | B．ocean | C．rescue | D．percent |
laugh
| A．daughter | B．neighbour | C．enough | D．though |
Not once ________ to Michael that he could one day become a top student in his class.
| A．occurred it | B．it did occur | C．it occurred | D．did it occur |