—How long has your brother _________ in the army ?
—About five years.
| A．taken part | B．joined | C．served | D．attended |
Don’t be late again. Please try your best to be here __________.
| A．in time | B．on time | C．at times | D．at all times |
While she was trying to pass a truck before her, she __________ another car coming.
| A．saw | B．was seeing | C．has seen | D．sees |
---Have you ever been to Shanghai, Mary?
---Yes. I __________ there for a week with my parents last month.
| A．have been | B．have gone | C．went | D．was |
--- __________ came to see you yesterday.
---Who was __________?
| A．Somebody; he | B．Anybody; he |
| C．Somebody; it | D．Anybody; it |
I can __________ be a doctor. I don’t have enough patience at all.
| A．seldom | B．ever | C．always | D．never |