English!!! Help!!!!

English!!! Help!!!!Open the brackets putting the verbs in the Past Simple or the Past Continuous tense-forms 30)She (weep) bitterly while she (tell) her story. 31)As Mary (get) out of the boat her foot (slip) and she (fall) into the water. 32)While I(wait) for the bus I (notice) a group of tourists who (listen) intently to a guide. 33)I (try) to explain the situation to my parents, but they just (not/ understand) what I (talk) about. 34)She (injure) her ankle while she (jog) in the park. 35)I (feel) rather worried. It (get) darker and colder, but there (be) still no sign of the rescue helicopter. 36)How often you (visit) your cousins when you (be) in the States last year? 37)John`s children (use) to be well-behaved but now they are quite naughty. 38)While I (row) across the lake I (lose) one oar. 39)At school I (dislike) the maths teacher because he always (pick) on me. 40)Nobody (watch), so the little boy (take) a packet of sweets from the shelf and (put) it in his pocket.