"bags are very useful accessories to brighten up your look"这里的介词to为什么后面加的是动词原形?

Hi Lilya!Look___these bags.Theyb are very nice. 填空：The bags ______ blue and orange are very nice. These bags are heavy. Are they this bags? my othe bags are where are there any bags? These bags are those --------.(run) These are the___(twin)bags. The red bags （ ）sale are very cheap.空格中的介词用什么.A.on B.to C.in yet i have found that sometimes the words that my father told me long time ago are remarkably usefu These are our bags where are____(they)? There are the ______(twins bags Where are the______(twin)bags? Over there There.are.my.bags.(改否定句) bags are very useful accessories to brighten up your look这里的介词to为什么后面加的是动词原形? 写出下面英语句子的反义句1、Come here2、Liu Tao got up early yesterday.3、The school bags are very heavy. They are my friends and these are t___ bags.I t_They are my friends and these are t___ bags.I t___ it is on your table.My friend and i___(not) know the boy's name.My sister and i have a happy family and we love ___(we) family very much. 我们有价格便宜的运动包 We have bags for sports ( ) ( ) very ( ) ( ) 可不可以用ARE SOLD;VERY CHEAP同学有的用that have；low price和at a；low price的