题目内容
There are different types of affixes or morphemes. The affix “un” in the word “unhappy” is known as a(n) _______.
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What the element “-es” indicates is third person singular, present tense. the element “-ed” past tense, and “-ing” progressive aspect. Since they are the smallest unit of language and meaningful, they are also _______.
A compound is the combination of only two words.
Only words of the same parts of speech can be combined to form compounds.
We can always tell by the words a compound contains what it means because the meaning of a compound is always the sum of the meanings of its parts.
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