1. Отметьте правильный вариант образования множественного числа 20) city - cities.: 1)roof-rooves, 2) dish - dishes, 3) fish - fish, 4) potato - potatos, 5) half-halfs, 6) branch - branches, 7) book - books, 8) book - bookes, 9) dress - dreses, 10) wife - wifes. 11) paper - papers, 12) factory - factorys, 13) day -daies, 14) play - plays, 15) list - listes, 16) safe - saves, 17) text - texts, 18) lamp - lamps, 19) bridge - bridges,

20) city - cities 2) dish - dishes, 3) fish - fish, 6) branch - branches, 7) book - books, 11) paper - papers,  14) play - plays, 17) text - texts, 18) lamp - lamps, 19) bridge - bridges

Объяснение:

What are the two 'most American’ holidays? Fill in the gaps the correct prepositions.
Americans have a big party on Independence Day. Some towns and cities have parades with music bands and flags _on__ the Fourth of July. The atmosphere of the family party, with hot dogs and hamburgers _in_ the afternoon and the fireworks _at_ night makes the Fourth of July a national birthday party. Thanksgiving Day is _on_ the fourth Thursday _in_ November. People started to celebrate it _in_ 1621. _On_ Thanksgiving all people in the family gather in the house of their parents and eat a large traditional dinner.

What are the two 'most American’ holidays? Fill in the gaps the correct prepositions.
Americans have a big party on Independence Day. 

Some towns and cities have parades with music bands and flags _on__ the Fourth of July. 

The atmosphere of the family party, with hot dogs and hamburgers _in_ the afternoon and the fireworks _at_ night makes the Fourth of July a national birthday party. 

Thanksgiving Day is _on_ the fourth Thursday _in_ November. 

People started to celebrate it _in_ 1621. _On_ Thanksgiving all people in the family gather in the house of their parents and eat a large traditional dinner.