He told me that he 11 for the previous two months on the plans for the new factory in Naples

has worked

has been worked

had been worked

had been working

উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।

ব্যাখ্যা ও সঠিক সমাধান

উত্তর: had been working

বিস্তারিত সমাধান