5. (a) To give the growing concern for ecological issues, city residents are more
interested in protecting the environment.
(b) In college, selecting your classes will be invaluable in determining what
type of education you receive.
(c) My cousin is a student at Harvard University, where he is majoring in
mathematics as well as East Asian Studies.
(d) All these questions may be answered after you have figured out the
subjects in which you excel.
nide saainil m