LastSundayIwaswalkinginapark.Therewasamomandherthree-year-olddaughter16(walk)beforeme.Thelittlegirl17(hold)aballoon(气球).Suddenlyastrongwindblewaway18balloonfromthelittlegirFshand.Igotworrie

　　  LastSundayIwaswalkinginapark.Therewasamomandherthree-year-olddaughter16(walk)beforeme.Thelittlegirl17(hold)aballoon(气球).

　　  Suddenlyastrongwindblewaway18balloonfromthelittlegirFshand.Igotworriedandbegantowaitforthegirl19(start)crying.

　　  Butno!Whenthelittlegirlturnedtowatch20(she)balloonflyawaysheshoutedout“Wow!”

　　  Ididn’trealizeitthatmoment21thatlittlegirlreallytaughtmesomething.

　　  LaterthatdayIgotaphonecall22apersonwithaproblem.WhenIwantedtosay“Ohno.23shouldwedo?”Irememberedthatlittlegirl.ThenIfoundmyself24(say)，“Wowthat’sinteresting!HowcanIhelpyou?”Then25(thing)wentwell.

　　16.17.18.19.20.

　　21.22.23.24.25.