Dear,
What's the difference between :
I haven't got a car at the moment ....and I don't have a car
the first is a present with future effect so ......i'm going to :is the correct answer
the second is a fact (in general i don't own a car) so i have to go by bus or i go by bus
I hope that it's now clear

i haven't got a car دا معناه انوا مش معاه عربيه لحد الان يعنى مش معاه عربيه اصلا يبقى الجمله الى بعداها هتدل على عاده و العادات تستخدم المضارع البسيط يعن it's definitely GO

جاءت كلمة at the moment لتدل على حدث الان وليس الدوام
اي ان هناك مشكلة بالسيارة ملكه في هذا الوقت لذلك سوف يذهب للعمل على غير المعتاد
فتكون الاجابة بـ المضارع المستمر أو المستقبل ولا يوجد مستقبل لذك المضارع المستمر يعبر عن المستقبل
am going is the best answer

الحل am going لو مفيش at the moment تبقى goes

am goingالاجابة

Iam Going
هى الحل الصحيح
+
مدرسين كتير أختلفوا فى النقطه دى وحد دلوقتى محدش أدى أجابه مفنعه غير هنا
شكرا لكل الاساتذة اللى هنا

am going لان ذلك شىء تغير

والله يبقى نعذر ابنائنا الطلبه انا حليتها am going

الاجابة الصحيحة هى I'm going لانةكاتب (at the moment) وهذا يعنى انة ربما تكون لدية سيارة عند الميكانيكى مثلا

المشكله عند الميكانيكي لأنه هو اللي مصلحش العربيه في نفس اليوم وساب الراجل يتبهدل في الموصلات والاوتوبيسات.

what are you talking about guys ,the answer is so simple; it lies in the indefinite article " a " which means that he doesn't have a car at all for the time being . that's why he uses the bus as a means of transport instead of what he doesn't have . But if there were the definite article " the " it would be different as the meaning would indicate that there was something which prevented him from using the car which he already owns that's why he will use the bus temporarily . As I said " so easy ."

go" iam sure 100%

I agree with you, this is the right answer
The point here is the difference between " don't have & haven't got"