Exercise

Exercise A :

4. The basketball player tossed the ball into the hoop. (RIGHT)

    The sentence is right! Because there is a subject and verb.

Exercise B :

6. In the office of the building across the street from the park on the corner. (WRONG)

    The sentence is wrong! Because it’s unclear. There is no subject and verb. There’s just have prepositional phrases.

Exercise C :

4. in 1867, ....... Alaska from the Russians for $7.2 million.

         A. Purchased the United States

         B. To purchase the United States

         C. The United States’ purchase of

         D. The United States purchased

The answer is (D) because there is subject and verb. Answer (A), (B), and (C) isn’t correct, because there is no subject and verb and that answers are unclear.