Plural number of "ultimatum" is:
The old man _______ last Monday.
When they had their first child, they put a ______ large sum for his education.
It will be your task to make sure the __________ of traffic is maintained without interruption.
Put the right word in the blank. "He reached the - of his literary career.
abattoir
acme
admonish
abdicate
Compared with their parties, politicians are ______ ; they are considerably less enduring than the organizations in which they function.