"De-, dis-, un- ," in "de-compose, disunite, unwrap", are called____. A: pejorative prefixes B: negative prefixes C: reservative prefixes D: miscellaneous prefixes

Derivatives are formed by using prefixes and suffixes. Prefixes usually change the class but suffixes usually change the meaning.

( ) Prefixes are used to modify the meaning of the bases attached to. All prefixes don’t change the word class of the base.

Which of the following prefixes is not related to numbers?

Which of the following affixes are negative prefixes?

Which of the following prefixes does not indicate negation?

______ is the formation of new words by adding prefixes to stems.

The words on the left side of the heads function as (), while the words on the right side of the heads are ()． A: complements, specifiers B: prefixes, suffixes C: specifiers, complements D: suffixes, prefixes

Which of the following prefixes is not used to indicate space or direction?

The prefixes “in-”, “im-”, “ir-” and “il-” are totally identical and they are interchangeable.