Answer:

Introduction:
In this question, we are given a sentence and we need to choose the correct form of the verb to complete the sentence. The correct answer is "is helping". Let's understand why "is helping" is the correct answer.

Explanation:
The given sentence is "Andrea ________ (help) me at present." To choose the correct form of the verb, we need to consider the subject "Andrea" and the time frame "at present".

Subject-Verb Agreement:
In English grammar, subject-verb agreement is an important concept. It states that the verb must agree with its subject in terms of number and person. In this case, the subject "Andrea" is a singular noun, so the verb should be in the third person singular form.

Present Continuous Tense:
The phrase "at present" indicates that the action is happening currently. To express actions happening in the present, we use the present continuous tense. In this tense, the verb is formed by using "is/am/are" + present participle ("-ing" form of the verb).

Correct Answer:
Considering the subject-verb agreement and the present continuous tense, the correct form of the verb to complete the sentence is "is helping". This form agrees with the subject "Andrea" (third person singular) and expresses the ongoing action in the present.

Conclusion:
In conclusion, the correct answer is "is helping". This form of the verb agrees with the subject "Andrea" in terms of number and person, and it correctly expresses the ongoing action in the present.