适当形式：You __were__(be) thirteen years old last year.请问,横线上为什么要填were?

适当形式：You __were__(be) thirteen years old last year.请问,横线上为什么要填were? Where____(be)you just now适当形式 用动词BE的适当形式填空[ ]you Mr Green 适当形式填空,（）you ever()to Shanghai?(be) were (be)you just now I ( be ) in the library( 用所给适当形式填空 ) Where ______（be) your familylast Sunday?______(be)your uncle with you?用适当形式填空 what are you going to be when you ()(leave) school适当形式填空 You are here!I _____ (think) you ____(be ) in the library.适当形式填空 快, someone (call) you this morning when you (be ) out 用括号的适当形式填空 There_____ ____（be)an interesting film next sunday.Will you go?适当形式填空 were (be)you just now ( 用所给适当形式填空 ) 用be动词的适当形式填空 you can__in our school music club were （be）you just now ( 用所给适当形式填空 ) -----you-----read English?用be going to的适当形式填空!急. if it【 】 [be] fine tomorrow,i will go with you适当形式 ____(be) you a teacher three years ago?no,i___________适当形式填空 用be动词的适当形式填空:Running good for you. You will make more mistakes if you______(be not)careful,用适当形式填空