A:Sam  (not/come) to the cinema with us. B: I know. He (help) his mum paint the kitchen. * 
 didn't come; helped
 didn't come; was helping
 wasn't coming: was helping
 A: The lights at my house  (go out) last night. B: Really? What  (you/ do) at that time? *
 
 went out; were you doing
 were going out; did you do
 went out; did you do
 A:  (it/ rain) when you left the house this morning? B: No, but it started as I  (drive) to work. *
 
 was it raining; was driving
 was it raining; drove
 did it rain; was driving
 A: He  (not listen) while his teacher was talking and she got angry. B: Oh, no!  (he /get) into trouble! *
 
 didn't listen; was he getting
 wasn't listening; did he get
 didn't listen; did he get
 A: Where...(you/go) at 6 o'clock in the morning yesterday? B: I think you saw someone else. I ...(sleep) that early in the morning ! *
 
 did you go; was sleeping
 did you go; slept
 were you going; was sleeping
 A:  (you/ lock) the door this morning? B: No, I  (forget) *
 
 did you lock; forgot
 were you locking; was forgetting
 were you locking; forgot
 A: Pete  (not feel) well when I saw him yesterday. B: ... (he/ see) a doctor? *
 
 didn't feel; did he see
 wasn't feeling; did he see
 wasn't feeling; was he seeing
 A:  (you/ find) the book you lost? B: Yes, I  (look for) everywhere for it when I (realise) that it was still in my schoolbag. *
 
 did you find; was looking for; was realising
 did you find; was looking for; realised
 did you find; looked for; realised
 A: What  (they/ do) when the fire started? B: Tom  (listen) to music while his mother was cooking. *
 
 did they do; was listening
 were they doing; was listening
 were they doing; listened