Reasons:
-
A) Yes, I’m
This option is grammatically incorrect because it should be "Yes, I am" when answering a question in full. The contraction "I'm" is typically used in statements, not in short answers. -
B) No, I aren’t.
This option is incorrect because "aren't" is the contraction for "are not," which does not fit with "I." The correct negative form for "I" would be "I am not," so it should be "No, I'm not." -
D) No, I not
This option is grammatically incorrect because it omits the necessary verb "am." The correct phrase would be "No, I'm not."
C) Yes, I am is the correct and complete response to the question "Are you happy?"
The reasons:
-
A) There’s it.
This option is incorrect because "There’s" is a contraction for "There is," which does not correctly fit with "it" in this context. The sentence structure is also incorrect for indicating the location of something. -
B) He’s under the chair
This option is incorrect because "He’s" refers to a male person, not a book. Also, "under the chair" should be used with "It’s" to indicate the book's location. -
D) There’s on a chair.
This option is incorrect because "There’s" should be followed by a noun or pronoun, such as "There’s a book on a chair." The sentence is incomplete and does not correctly answer the question.
C) It’s here correctly and concisely answers the question by indicating the location of the book.
Why the other options are incorrect:
-
A) sings Sarah?
This structure is incorrect for forming a question in English. In English, when forming a question in the present simple tense, the auxiliary verb "does" is needed for the third person singular (he, she, it). -
B) Sarah sings?
This is also incorrect because, while it might be used informally or in spoken English to express surprise, it's not the standard form for asking a question. -
C) Sarah does?
This is incorrect because "Sarah does?" does not form a complete question. It could be used as a short response to confirm something previously stated, but it does not correctly complete the sentence as required. -
D) does Sarah?
This is the correct answer. It properly uses the auxiliary verb "does" to form a question in the present simple tense, making the complete sentence "Tom often sings, but does Sarah?" This correctly asks if Sarah also sings, following the statement about Tom.