Give the correct form of the verbs in brackets.
1.The sewing machine which you (use) ........................................at present
( invent )..........................in 1830 by a French .
2. Last night when we (visit)……………… him he (do)………………. and experiment on the upstairs.
3. Please continue your work, we don’t mind (wait)...............................
4. Where you (spend) your summer holiday last year ?.........................
5. John (wash) .............................his hands. He just (repair)………………… the TV set.
6. My aunt (not be) .......................................out of his house since she (buy)………………………… a color TV.