Explanation: The correct answer is A) watches. Here’s why: Subject-Verb Agreement: The subject "My brother" is a third-person singular noun. In the present simple tense, verbs take an "-es" or "-s" ending for third-person singular subjects. Grammatical Structure: The sentence describes a habitual action (something that happens every evening), which is expressed using the simple present tense. Verb Form: The base form "watch" changes to "watches" for third-person singular subjects in the present simple tense. Thus, the sentence should read: "My brother watches his favorite TV program every evening."

Explanation: The correct answer is B) have. Here’s why: Auxiliary Verb "Doesn't": In negative sentences in the present simple tense, when using "doesn't" (the contraction of "does not"), the main verb stays in its base form. Verb Form After "Doesn't": The verb following "doesn't" should be in the base form, which is "have" in this case, not "has" or "had." Correct Structure: The sentence is structured correctly with "doesn't have" to indicate the absence of a brother in the present tense. Thus, the sentence should read: "My friend has a sister, but he doesn’t have a brother."

Explanation: The correct answer is A) is. Here’s why: Subject-Verb Agreement: The subject "My sister’s name" is singular, so it requires a singular verb form. Verb "To Be": The verb "to be" in the present tense for singular subjects (like names) is "is". Complete Sentence: The sentence structure requires the verb "is" to correctly link the subject ("My sister’s name") to the predicate ("Susan"). Thus, the sentence should read: "My sister’s name is Susan. She is a doctor."

Explanation: Subject-Verb Agreement: The subject here is "your father," which is singular. Question Formation: When forming a yes-no question in English, especially when asking about someone's occupation or identity, you typically start with a form of the verb "to be" (is, am, are) followed by the subject and then the options (teacher or policeman). Correct Question Structure: The correct structure for the question is: "Is your father a teacher or a policeman?" This construction allows for a straightforward question about someone's occupation or identity using the verb "to be" in the correct form for a singular subject.

Explanation: Subject-Verb Agreement: The subject here is "I," which is a first-person singular pronoun. In the present tense, verbs take the base form (without "-s" or "-es") for first-person singular and plural subjects. Verb Form: The sentence describes a habitual action or state (living in a small apartment near the college), which is expressed using the present tense. Correct Verb Usage: "Live" is the correct base form of the verb for the subject "I" in the present tense. Therefore, the correct sentence is: "I live in a small apartment near the college."

Explanation: Here’s why: Subject-Verb Agreement: The subject here is "I," which is a first-person singular pronoun. Negation: The sentence indicates a negation ("not"), which in this case applies to the verb "am." Complete Sentence: The correct structure to convey the idea that contradicts the first statement ("I am not a very busy person") is achieved by using "am not" as the negation of "am." Therefore, the correct sentence is: "I am not a very busy person. In fact, I have lots of free time."