Question

Use the Simple Past or the Present Perfect.
1. Since classes began, I (have, not) much free time. I (have) several big tests to study for.
2. Last night my roommate and I (have) some free time, so we (go) to a show.
3. I admit that I (get) older since I last (see) you, but with any luck at all, I (get, also) wiser.
4. The science of medicine (advance) a great deal in the nineteenth century.
5. Since the beginning of the twentieth century, medical scientists (make) many important discoveries.

Answer 1

1. Since classes began, I haven't had much free time. I have had several big tests to study for.

2. Last night my roommate and I had some free time, so we went to a show.

3. I admit that I have got older since I last saw you, but with any luck at all, I have also got wiser.

4. The science of medicine advanced a great deal in the nineteenth century.

5. Since the beginning of the twentieth century, medical scientists have made many important discoveries.