I wish I --- a car.

Explanation: The correct option is D, "had." This is because the sentence is in the past tense and refers to a hypothetical situation. The use of "wish" indicates that the speaker is expressing a desire for something that is not currently true. Therefore, the correct verb form to use is the past subjunctive, which is "had." Option A, "have," is incorrect because it is in the present tense and does not match the past tense of the sentence. Option B, "shall have," is also incorrect because it implies a future action and does not match the past tense of the sentence. Option C, "have had," is incorrect because it is in the present perfect tense, which indicates an action that began in the past and continues into the present. This does not match the hypothetical, past tense context of the sentence. Therefore, the correct answer is D, "had."
Generative