填动词be的适当形式：When （ ） the first time they （ ） in Beijing?

填动词be的适当形式：When （ ） the first time they （ ） in Beijing? There are three()(teach)in the office(填动词的适当形式） My mother_____(be) to Beijing .(用动词的适当形式填空） They ____ in Qingdao last year.（be动词适当形式） The clock and the model plane _（be）in the.room.用所给动词的适当形式填空 用be动词的适当形式填空.what color（）they? 把be动词的正确形式填空 There----many people in the beijing Train stati I usually do my homework first after （get） home ,用动词get适当形式填 be动词的适当形式填空.1.peter( )eleven years old.2.what( )they on the 急用!By the time I got outside,the bus ----(填leave的适当形式） mimi ---happy now because she ---the game.前面填be动词.后面win的适当形式 填be动词的适当形式A set of keys () on the table.