I wrote "tomorrow I will buy the watch", which I believe is valid, but it was marked incorrect
Still does not accept "I will buy a watch tomorrow."
How many times have I been marked wrong before for using "am going" for 会 in lower levels of this course instead of 'will' or 'can'? In fact the statement above has no "going" in it at all. It just says I will buy a watch tomorrow.
Should also accept with "watches" as well as "a watch" since quantity is neither stated nor implied.