General point: In English it is best to adopt the rule that you NEVER use an apostrophe to form a plural. Some styles allow for a couple of very rare exceptions, but most writers will never meet them and hardly anybody would notice.
The title of this section should be “Basics in Vietnamese”.
I’m Vietnamese. I wanna improve my English skill and I willing to hell who study English . Contact me email : tranthanhdung1206@gmail.com or facebook.com/tranthithanhdung
Thanks for reading