When you feel tired or weak ,green may be of to you.
| A．helpful | B．helpless | C．help | D．to help |
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 |
---Cathy, are you going to buy a flat in Shanghai?
---You must be joking. I can’t __________ one there.
| A．spend | B．pay | C．afford | D．cost |