<span>Julia is working in the garden. The correct answer is A. This is because she is working at this very moment, which is why you need to use the present progressive tense in this sentence. B is wrong because you need to use the verb to be (is) in the sentence before it. Is work is a form that doesn't exist. Are working would be used if the subject of the sentence was plural, if there are more people involved.</span>
May I ask what book and what are the answer choices?
Answer:
1: Never are students allowed to use dictionaries in the test.
2: Never could Mary have given you any money.
3: No sooner than he came home, the problem intensified.
4: Only occasionally does Sharon talk to me these days.
5: Under no circumstances are you to talk to him about any issue.