1.I a letter while she a book. (WRITE, READ) wrote, read was writing, read wrote, was reading was writing, was reading 2.When I at them, they at me. (LOOK, SMILE) looked, were smiling was looking, smiled looked, smiled were looking, were smiling 3.What (you) in the evening yesterday? (DO) was you doing did you did did you do were you doing 4.What (you) the whole evening yesterday? (DO) did you did were you doing was you doing did you do 5.This time yesterday I at the theatre. (SIT) was sitting sat was siting were sitting 6.I to school when I him. (GO, SEE) went, saw was going, saw went, was seeing was going, was seeing 7.The train at 9.45. (START) started was starting starts were starting 8.The boy with a knife when he his finger. (PLAY, CUT) was playing, was cutting were playing, cut was playing, cut played, was cutting 9.He a report when I the classroom. (MAKE, LEAVE) was making, left were making, left made, was leaving made, left 10.This time yesterday we dinner. (HAVE) haved had was having were having