The train who leaves at 9.30 stops at Milton Keynes.

The train stops at Macclesfield when at 9.00 am.

The train stops at Macclesfield which leaves at 9.00 a.m.

The train which stops at Macclesfield leaves at 9.00 am.

A clause which explains the subject or object of a sentence.

A part of a sentence that adds extra information.

A phrase in a sentence which gives you additional information that's not necessary for the meaning of the sentence.

A clause that tells you about the time something happened.

A kind of food which it is often eaten on the street.

A type of pie what usually has cheese on top.

A type of food which is often eaten on the street.

A food who is very fattening.

It's the rules which control the way we use language.

It's the time and effort when you have to put in to learn a language.

It's a very annoying part of language learning who can take lots of time and effort.

It's the patterns they you have to follow to be correct.

All of them.

None of them.

1,2 and 3.

1 and 4.

Must come directly after the noun they define.

Must always start with a pronoun.

Must have a comma before and after the clause.

Always start with a word that starts with "wh..".

You only use non defining clauses to add extra gossip to a sentence.

A defining clause is a necessary part of the message in the main clause.

Nothing. They do the same thing.

Defining relative clauses use commas.