Susie__________(have/had/having)abirdhouse.Onedayabeautifulredbird___________(come/came/coming).It_________(made/make/making)alittlebedinthehouse.Thenit__________(spent/spend/spending)alotoftimeinthehouse.Susie____(went/go/going)neartothehouseand_____(seeing/see/saw)threebabybirds.Soonthey_________(become/becoming/became)bigbirdsand__________(fly/flew/flying)away.