Which phrase makes no sense? That's the idiom.
No, "good student" is not an idiomatic expression. It simply refers to a student who performs well academically.
A car is a possession. In English, this sentence structure would mean that you are in the act of passing the car as a bowel movement. It is an idiomatic expression which is incorrect English. The proper expression is "I have a car". This structure indicates that you are in possesion of the car. Having is idiomatic of body function. It is very difficult for the non English student to comprehend.
Noun Phrase
correct
They shouldn't ! Passive smoking kills !
hi
how dangerous smoking is
To reach the other side of town quickly, riders should take the express bus. An environmentalist panel met to express outrage over the approval of the new dam. There is no express requirement that city firefighters live within the city limits.
Schools have tried to limit hate speech, drug-related messages, violent expression, and sexual innuendo.
In Hazelwood School District et al. v. Kuhlmeier et al., 484 U.S. 260 (1988), the US Supreme Court held that public school curricular student newspapers that have not been established as forums for student expression are subject to a lower level of First Amendment protection than independent student expression or newspapers established (by policy or practice) as forums for student expression. In other words, public school officials may impose some limits on what appears in school-sponsored student publications.
correct
they would simpily go to jail.