SENTENCE-BUILDING.
Build four short sentences for each of the three co-ordinate conjunctions that follow. In the first, let the conjunction be used to connect principal parts of a sentence; in the second, to connect word modifiers; in the third, to connect phrase modifiers; and in the fourth, to connect independent clauses.
And, or, but.
Write four short complex sentences containing the four subordinate conjunctions that follow. Let the first be used to introduce a noun clause, and the other three to connect adverb clauses to independent clauses.
That, for, if, because.