Choose the word that has the main stress different from that of the others

I. Choose the word whose underlined part is pronounced differently from that of the others:
1. A. throw B. flower C. fly D. flu
2. A. than B. theater C. theory D. thorough

II.Choose the word that has the main stress different from that of the others:
3. A. evaluate B. favourable C. convenient D. relationship
4. A. decorate B. pagoda C. relative D. calendar