D. she ended the relationship
Explanation:
The activities in which human beings are engaged in different kinds of economic works to generate income are called economic activities.
or in simple words
Any work from which we can generate income are called economic activities
hope this helps you
In order to answer this, we need some context. I'm assuming this is a comprehension?
Answer:
Don't make so much noise. Noriko <em><u>is trying</u></em> to study for her ESL test!
Explanation:
In the given sentence, the speaker is seen asking or rather ordering the others to not make any noise. And the verb in the blank will be in the present continuous tense, as the act of studying is still an ongoing act.
Considering the verbs in the given sentences, "make" is in the present tense which makes the tense in the next sentence a present tense too. And, the helping verb "is" emphasizes the verb, making the next sentence into a continuous form.
Thus, the final sentence will be
<em>"Don't make so much noise. Noriko </em><u><em>is trying</em></u><em> to study for her ESL test."</em>