Note that although coordinating conjunctions such as and, but, and so can join two independent clauses when they precede a comma, transitional expressions must follow the punctuation pattern stated in the previous rule. Directions: Decide which of the following sentences are correctly punctuated. Check all that apply. Ellie loves history, in fact, she aims to be a history professor some day. Ellie loves history. In fact, she aims to be a history professor some day. Ellie loves history; in fact, she aims to be a history professor some day. Ellie loves history, she aims to be a history professor someday. Ellie loves history, in fact she aims to be a history professor some day.