Give the correct form of the words

give the correct form of the words
1.There are lots of ..................(beauty) beaches in Vietnam.
2.Air .............. (pollute) is a big problem in the big cities.
3.Spring is ............... (warm) than fall.But summer is the ............( hot) season of a year.
4.His ........ (tooth) are small and white.
5.I go to visit my grandparents ................... (one ) a month.
Choose the word which has the underlined part pronounced differently from the others
1. A. granparents        B.brothers           C. uncles       D. fathers
2.A . request          B.project           C.neck           D.exciting
3.A.thursday         B.thanks           C.these          D.birthday