Question

Помгите, пожалуйста, очень нвдо...

Answer 1

1/ Do you know how old he is.
2/ You should study English hard.
3/ I thought that you knew it.
4/ You can find some interesting things in every magazine.
5/ We asked them if they had bought a dictionary. 
++++++++++++++++++
1/ b
2/ a
3/ с
4/ а
5/ а