21. (Boşluklara sırasıyla hangi aylar gelebilir?)

Solution:

This question asks which months can come in order. The options provided are combinations of months. Without further context or a specific pattern to follow, it is difficult to definitively determine the correct answer. However, looking at common seasonal patterns and the options given, option (d) seems plausible if the sequence relates to a typical yearly progression of seasons or events.

Answer: d) February, May, November, December