Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
It is _______ not to say "Thank you" when you are given something.
small rude slight formalMôn học
Chủ đề / Chương
Bài học
Chủ đề
Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
It is _______ not to say "Thank you" when you are given something.
small rude slight formal