21. Complete the words with ea, ee, i, oa, ou: create, abr__d, m__ntain, portr__t, entert__n, trad__tion, sm__rt, b__rd, c__lour, c__ntry, d__tch, s__ghts__ing, f__v__rite, w__ther, gr__t.

Вставляем буквосочетания по правилам чтения и написания слов:

create, abroad, maintain, portrait, entertain, tradition, smart, board, colour, country, ditch, sightseeing, favourite, weather, great.

Ответ: abroad, maintain, portrait, entertain, tradition, smart, board, colour, country, ditch, sightseeing, favourite, weather, great.