Which of the following statements is not true?
oa) a word ending in 'a' might be a greek or latin plural or a latin singular.
ob) a word ending in 'es' may have a singular form ending in 'is.
oc) some latin plurals are shorter than their singular forms.
od) the singular form of 'caves' must be 'café' or 'cavis.'

OD) The singular form of 'caves' must be 'café' or 'cavis.'

Explanation:

The singular form of caves must be cave, as café or cavi mean totally different things. OA is true, as we have the examples of data, trivia, among others,

OC also true, as we have the examples of cactus – cacti  and focus – foci, and OB is true as well, as we can defer by analysis – analyses , ellipsis – ellipses.

the narrator closes the lantern tightly so the old man is

not awakened by the bright light

explanation: