III. Complete the following sentences with the correct perfect tense of the verb. 1. We (study) a lot for the test before we finally took it yesterday. 2. They (drink) a gallon of water since practice started. 3. He (decide) on his project by this afternoon. 4. The dog (belong) to my grandmother before it came to live with us. 5. By the end of the school year, Mrs. Santos (teach) for twenty years.
