Rewrite the following sentences using antonyms for the underlined words while maintaining the original meaning:

Here are the rewritten sentences using antonyms of the underlined words without changing the original meaning:

a. Alamu's symptoms of illness were so many that they were not obvious for a long time.
b. The clarity was absent as she had spelt wrongly in the register.
c. In case your presentation is imperfect, we will mark you on your creativity.
d. Her idea is illogical; it can't be implemented.
e. Do you dislike your music teacher?
f. Although Ayaya took extra time, her paper was incomplete.
g. Banjo spoke irrationally in the meeting today.
h. Eyisi was unable to take the dog out for a walk yesterday.
i. The teacher disapproved of the words used in the letter.
j. You may wear informal clothes for the dinner tonight.