when I got to the park,they were playing ( )there 这里填happy的什么形式

The film__ [begin] when I got to the cinema. The film---(begin)when i got to the cinema. The film started.I got to the cinema.(When) When I got to the cinema,the film had _____ They ____ (water) flowers when I got to the garden. I,when,bell,ringing,to,got,final,the,was,school When I got to the destination,I____(feel) very excited. when i got to the check-out,i realized that i ___(not bring) my purse when i got to beijing,my aunt went to the a___ to pick me up. I found the door open when I got home为什么不是opening?或动词不定式I found the door to be open when I got home 那I found the door to be open when I got home等不等于I found the door open when I got home The bell had ran when I got to 1.The bell had ran when I got to school.（改否定句）2.The train had left when Jim got to the station.(一般疑问句) I found nobody in the hall when I ( ) A.arrived B.got C.reached D.got to When I got to the shop.I found it ___ (close). When I got on the bus,I took a s________ and began to read a newspaper. When I got to the station,she had_____.A.arrivedB.reachedC.get to填什么?为什么? when i got to the railway station,the train______(leave) already Milie and her brother ( )the flowers when i got to the garden.填什么