1.Last night when we (visit)....him, he (do)....an experiment 2. the sewing machine which you (use) ....at present (invent).....in 1830 by a French 3.I (not see)....your uncle recently - No.he (not go) out since he (buy)....a new color television 4.Do you know that the pudding (make)....from? - I'm not sure. My mother often (cook) .....it at Christmas, but I never (ask)....her about it.

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