Complex Sentence: Adverbials

The students work hard. Why?

Choose the correct order.

The students [|the teacher|to make sure|is|*do*|well|their work|happy](?) [|the teacher|to make sure|is|do|well|*their work*|happy](?) [|the teacher|to make sure|is|do|*well*|their work|happy](?) [|the teacher|*to make sure*|is|do|well|their work|happy](?) [|*the teacher*|to make sure|is|do|well|their work|happy](?) [|the teacher|to make sure|*is*|do|well|their work|happy](?) [|the teacher|to make sure|is|do|well|their work|*happy*](?).

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The students do their work well to make sure the teacher is happy.

>*To make sure the teacher is happy* is the subordinate clause, and an adverbial clause of reason. This is the answer to a *why* question. *The students do their work well* is the independent main clause. *To make sure* links the two clauses.
