When/What is on 14th February?

Solution:

The question asks about something that occurs on the 14th of February, which is a specific date. Let's examine the options:

1. Option 'a' "Valentine's Day!" is a holiday that falls on February 14th. This directly answers 'what' is on 14th February.
2. Option 'b' "It's on 16th June." provides a different date.
3. Option 'c' "By bus." describes a mode of transportation.
4. Option 'd' "Because I lost my new watch." explains a reason for sadness.
5. Option 'e' "They're fairy penguins." is an unrelated statement.
6. Option 'f' "We can!" is a statement of ability.
7. Option 'g' "It's in the cupboard." indicates a location.

Thus, the correct answer for "What is on 14th February?" is "Valentine's Day!".

Answer: a Valentine's Day!