Choose the grammatically correct option.

Because we rehearsed our presentation, the audience responded positively.

Because we rehearsed our presentation. The audience responded positively.

Because we rehearsed our presentation the audience responded positively.

Choose the grammatically correct option.

As you revise your presentation, check carefully for spelling, grammar, and punctuation errors.

As you revise your presentation check carefully for spelling, grammar and punctuation errors.

As you revise your presentation, check carefully for spelling grammar and punctuation errors.

Choose the grammatically correct option.

I think I will always have stage fright, yet I enjoy public speaking tremendously.

I think I will always have stage fright yet, I enjoy public speaking tremendously.

I think I will always have stage fright yet I enjoy public speaking tremendously.

Choose the grammatically correct option.

Our office is located in Phoenix, Arizona but we would like to open another one in Denver, Colorado next spring.

Our office is located in Phoenix Arizona but we would like to open another one in Denver, Colorado, next spring.

Our office is located in Phoenix, Arizona, but we would like to open another one in Denver, Colorado, next spring.

Choose the grammatically correct option.

It was Eleanor, not Darnell who called the office and informed them of the merger.

It was Eleanor, not Darnell, who called the office and informed them of the merger.

It was Eleanor not Darnell who called the office and informed them of the merger.