1. This is the first time I have ever seen such a wonderful computer.

2. She has studied English for seven years.

3. It's been two weeks since I last saw him.

4. This is the most delicious cake I have ever eaten.

5. The last time I went swimming was in 2005.

6. We are being elected the monitor of our class.

7. She must have needed her motorbike to be repaired.

8. Nobody in Jack's company programs as well as him.

9. The teacher said that we had to see that computer exhibition.

10. How long is it since you first bought this computer?

1.I have ever seen such a wonderful computer.

2.studied English for seven years.

3.two months since I last saw him.

4.delicious cake I have ever eaten.

5.they went swimming was in 2005.

6.elect Nam to be the monitor of our class.

7.her motorbike repaired.

8.in Jack's company is as good as him.

9.said that I had to see that computer exhibition.

10.have you bought this computer?