Find the word whose underlined part differs from the other three in pronunciation

Mọi người giúp nhanh giùm ạ.
A.Find the word whose underlined part differs from the other three in pronunciation.

1. A. weather                         B. brother                      C. cathedral                       D. although

2. A. parks                             B. computers                 C. astronauts                      D. maps

3.    A. towel                      B. over                        C. postcard                 D. photo

4.    A. hill                          B. hiking                     C. hour                        D. highland

5.    A. three                       B. there                       C. these                       D. they

6.    A. weather                  B. together                  C. mother                    D. author

B. Choose the word that has a different stressed syllable from the rest.

1.    A. island                     B. flashlight                C. mountain                D. hotel

2.    A. waterfall                B. October                  C. sandcastle              D. snorkeling

3.    A. statue                     B. downtown             C. palace                     D. landmark

4.    A. expensive               B. vacation                 C. attraction                D. capital

5.  A. astronaut                       B waterfall                    C. popular                          D. polluted