Ucice with
concalvo
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a. a word that's the opposite of the word.
b. a word that means the same as a less common word.
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c. a visual image of an unfamiliar word.
d. an explicit definition of an unfamiliar word.
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the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.

the writer needs to avoid using abbreviations and check spelling before sharing.

im pretty sure a would be the answer