Use Past Simple or Past Continuous
1) At this time yesterday I (sit) at the lecture. 2) He (come) back to St. Petersburg on the 15th of January. 3) He (to surf) a net when I (to come) in. 4) What you (do) at six o'clock yesterday? 5) Yesterday the classes (finish) at 5 o'clock. 6) The cat (take) a piece of fish and (run) away. 7) The train (start) at fifteen minutes to ten. 8) He (put) on his coat and cap, (open) the door and (go) out. 9) What you (do) at four o'clock yesterday? 10) I (begin) re-pairing my camera at six o'clock yesterday. 11) Nobody (listen) while the teacher (explain) the theme. 12) While Tom (read), Amely (watch) a film on TV. 13) Kate (not go) out yesterday. She (write) a term-paper the whole day yesterday. 14) As long as one group (prepare) dinner, the others (collect) wood for their campfire. 15) When Mike and Jane (paint) the walls, their dog (knock) over the paint pot.