Practice: Subordination

Unless means 'if not'. In Spanish, you might say 'a menos que'. The sentence means 'I'll go out if it does not rain'.

When is used for a specific time in the future. In Spanish 'cuando'. The sentence means 'At the specific time she sees you, she will be happy'.

Because gives a reason. In Spanish, you might say 'porque'. The sentence means 'The reason I left is that I was tired'.

The missing word introduces a conditional clause. 'If' is used to express a condition in English, similar to 'si' in Spanish.

'Because' is used to give reasons in English, similar to 'porque' in Spanish. 'Although' would introduce a contrast, not a reason.

In English, the word order in subordinate clauses is subject-verb-object (SVO) even after 'when'. In Spanish, the verb often comes at the end in such clauses.

In English, after 'because', the order is subject-verb-object (SVO). This is different from some Spanish patterns where the verb may come at the end.