因该填什么 Are( )English cars?

因该填什么 Are( )English cars? They are English cars.(改为单数形式) Those are English cars.改为单数是什么? They are English cars改为否定句 a number of cars ( )parked in front of my house 填什么 （is are ( )are you come from该填什么? These are English cars.（改为单数句） Lat's __ in English横线上应该填什么 those are their English cars.=______ cars of theirs are_____ ( ) are there in English填什么特殊疑问词? This is a very good English d__to study English横杠上应该填什么 you are reading english i am __ reading english填什么