instruction:
Rewrite each original sentence in order to make it easier to understand by non-native speakers of English. You can do so by replacing complex words with simpler synonyms (i.e. paraphrasing), deleting unimportant information (i.e. compression), and/or splitting a long complex sentence into several simpler ones. The final simplified sentences need to be grammatical, fluent, and retain the main ideas of their original counterparts without altering their meanings.
question:
While smaller towns to the east, including Gundowring and Kergunyah, remained under threat, the CFA said that there was no immediate danger to the larger towns of Beechworth and Yackandandah on the northern fringe of the fire area.
answer:
While smaller towns to the east remained under threat, the CFA said that there was no immediate danger to the big towns of Beechworth and Yackandandah on the northern edge of the fire area.


question:
During its heyday, Chang'an was one of the largest and most populous cities in the world.
answer:
Chang'an used to be of the largest cities in the world.


question:
According to a letter sent to his church, he and his doctors believed that the cancer was fully treatable.
answer:

According to a letter to his church, he and his doctors believed the cancer was treatable.


