Choose the line where all the word combinations are grammatically correct. many books, many mistakes, much coffee, many vegetables, many words, much sandwiches, many foodstuffs
many books, many mistakes, much coffee, many vegetables, many words, many sandwiches, many foodstuffs
many books, many mistakes, much coffee, many vegetables, much words, many sandwiches, many foodstuffs

actually, the correct way to write this:

1. when was the radio invented?

2. the book was written by pushkin.

My family consists of five people: mum, dad, my brother, grandmother and me. my brother's name is nikita. my mother's name is irina. my dad's name is oleg. my grandmother's name is valentina. we live very friendly. ( можно начать: my family is not very big. there are 5 of us: mum, dad, my brother, grandmother and me. my brother's name is nikita. my mother's  name is irina. my dad's name is oleg. my grandmother's name is valentina.)