Впробелах нужно вставить was или were. зарание большое )) clare and jay( ) dekorating the christmas tree with lights. the father ( ) dekorating the house for christmas . the mother ( ) hanging greetings cards on the walls. the grandfather ( ) making christmas cookies. the grandmother ( ) preparing a lot of food. the parens ( ) wrapping presents.
2) was
3) was
4) was
5) was
6) were
2-Was
3-Was
4-Was
5-Was
6-Were
Если не понятно, то смотри -
Were мы используем, когда множественное число (They, We, You)
Was мы используем, когда единственное число (I, She, It, He)
Все просто ;)