Teaching year after year, he gradually ________much experience.
| A．calculated | B．accumulated | C．abandoned | D．appointed |
It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
| A．process | B．attention | C．measure | D．part |
With the change of the economic foundation the entire immense superstructure is _____ rapidly transformed.
| A．anything but | B．more or less | C．at large | D．any more |
His landlady gave him a week's _____ to leave the flat.
| A．threat | B．notice | C．advice | D．caution |
Some people either _____ avoid questions of right and wrong or remain neutral about them.
| A．violently | B．sincerely | C．properly | D．deliberately |
If he refuses to _____ my plan, I can probably find someone more cooperative.
| A．put up with | B．fall in with | C．do away with | D．get along with |