Please kindly help correct a few sentences.
I'd like to make sure if the following sentences I wrote are all correct. Will any one of you please give me a hand?
1) Our teacher focuses on the teaching of English grammar in order to help us enhance our listening, speaking, reading and writing abilities.
2) The classes I am attending are conducted in English supplemented with some Cantonese.
3) Lexis as well as listening, speaking, reading or writing skills are covered in all lessons.
By the way, if the class I attended has only 4 students, can I say it's a 'small group' class or simply a small class?
Thank you in advance!