Question

Now she __________ questions to see if the students have understood the lesson. (asks, is asking, asked)
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Answer 1

Now she is asking questions to see if the students have understood the lesson.

• The correct tense to be used in the given blank is present continuous.

What is Present Continuous tense?

• Present Continuous tense indicates an action that is happening in the present moment.
• It is also known as the present progressive tense.

The structure of the present continuous tense is:

Subject + is/am/are + verb-ing + object

Example:

She is laughing.

I am running

We are playing.

Answer 2

Now she asks questions to see if the students have understood the lesson.

Explanation:

• Here the word "asks" is used.
• This is because we see that the sentence is kind of a report that describes the activity of the teacher and its regular routine to ask questions from students after teaching to check whether they have understood.
• So, basically by using asks, we want to convey that it is a general routine of the teacher.
• If we use "is asking" then we want to point just to this period of time in which the teacher is asking the question from the student.