John is a third$-$grade EB$/$EL and this is his third year in U$.$S$.$ schools. He can communicate with his teachers and classmates at an advanced level of proficiency in speaking and listening, but his reading and writing ability are still at the intermediate level. In science class, which of the following challenges will John most likely encounter? $($Select all that apply$)$

Simple grammar structures and informal language use

Decontextualized language

Understanding multi$-$meaning words have a certain meaning in a science context

Multiple concepts explained on each page of a science text