Final answer:
The /ch/ sound can be spelled with a 't' in words like 'nature'. While /ch/ is commonly spelled as or , the spelling occurs due to palatalization and can be found in words such as 'culture' and 'intellectual'.
Step-by-step explanation:
The word in which the /ch/ sound is spelled with a t could be 'nature'.
There are different ways in which the /ch/ sound can be spelled. Typically, the /ch/ sound is represented by either or , with being more common. However, about one-third of the time, the /ch/ sound is spelled using . This alternate spelling is referred to as palatalization and occurs under specific conditions in words. In words like culture, intellectual, and questions, the /ch/ sound is spelled with a .