
がっこう
学校
school
gakkou
- JLPT
- N5
- Frequency
- #395

がっこう
school
gakkou
JMdict 1206730

The topic particle は (topic) flags 学校 (school) as what we're talking about — "as for school…". After it comes just the na-adjective 好き (liked), with no copula at all. In casual speech you can drop です (is) entirely and let the rising ? (?) carry the question. The result is a quick, friendly "do you like it?"