请帮忙回答下时态填空题.
根据所给动词的适当形式填空.
1.i___(walk)throughtheparkwhensuddenlyiheardaloudbang.
2.he___(make)sixfilmstillnow.
3.herfather___(teach)himtospeakthreelanguagesbeforehersixteenthbirthday.
4.twoyearsago,i___(get)achancetogotosydney.
5.mumsaidshe___(call)youbackintenminutes.
直接把答案写出来就可以谢谢~