1) had, said, had 2) was shopping, lost, didn't know 3) are announcing, have, missed 4) is speaking, don't know 5) doesn't smoke, isn't smoking 6) was washing, found 7) did you learn 8) are going, is 9) are you waiting 10) broke, was driving 11) happened 12) wears, is wearing 13) is she watching 14) saw, was running, didn't have 15) does your son do, studies 16) are you doing 17) opened, was standing, was, didin'trecognize, wore 18) went