Complete the sentences with the correct forms of the verbs in brackets. Use the Present Perfect or Present Perfect Continuous.

1. How long _______(you/ take) computer lessons?

2. Jim ______(know) this scientist for eight years.

3. How much of your science project ______(you/do)?

4. Jane _____(study) for a major astronomy test all week.

5. _______(you/see) the remote control for the TV ? I can't find it anywhere.