---Is the new job a real challenge for him?
---Well, _______ difficulties he meets，I believe he will never lose heart.
| A．however | B．whenever | C．whatever | D．Whichever |
Annoyed by the salesman's bad manner，John chose ________of the two computers on sale and left.
| A．all | B．either |
| C．neither | D．none |
People develop ________ preference for a particular style of learning at ________ early age and these preferences affect learning.
| A．a；an | B．a；不填 |
| C．不填；the | D．the；an |
Four and ________ half hours of discussion took us up to midnight，and ________ break for cheese，chocolate and tea with sugar.
| A．a；a | B．the；the |
| C．不填；the | D．a；不填 |
Animals are obviously________lower form of life than________man.
| A．a；/ | B．the；the |
| C．a；the | D．/；/ |
The“Chinese Dream”is ________ dream to improve people’s wellbeing and ________ dream of harmony，peace and development.
| A．the; a | B．a; a |
| C．a; the | D．the; the |