teachers usually make no difference between second and foreign language.

“better” (l.7) is the opposite of worse.

“latter” (l.6) is a comparative of superiority.

teaching skills in isolation is not so rich as teaching them in an integrated way.

the integrated teaching/learning of the four skills provides the students with more motivation.

listening must be taught with speaking, whereas reading has to be taught together with writing.

the four skills should be taught separately.

“rarely” (l.14) is the same as seldom.

“them all” (l.11) refers to “meaning of a word” (l.10-11).

“along with” (l.1) means together with.