litter 的代词是it 还是themThere is a lot of litter ,please pick_____up.A.it B.them

litter 的代词是it 还是themThere is a lot of litter ,please pick_____up.A.it B.them shoes的代词时it还是them? fees,如果用代词是用it还是them? 水的物主代词是什么　them　还是it telephone number用代词them还是it 2 cents用代词代指是用it还是them用代词代指是用it 还是them their的名词性物主代词是theirs还是them? There is some litter there.Would you mind pick () up?填them还是it 如果代词代表的物品有多种不可数名词用it还是them? 如果代词代表的物品既有可数名词,又有不可数名词,用it还是them 在英语中如果两个并列的不可数名词做主语谓语动词是用单数还是用复数,如果用代词代替用them还是用it 英语中代词在动介词组,动副词组的位置例,work on them 还是work them ontake out/off it 还是take it out/off?代词放在动介词组间不行吗?如：work them on? it的物主代词快!是its还是is？？ 木乃伊的人称代词是什么?是it,还是he/she? invoice 是不可数名词吗?如果是指很多发票时,代词用IT还是THEM,谢谢 them 是代词吗 There is alot of litter in the park and we'd like to collect ( ).这空应该是it还是them work out加代词放在哪? 是work them out还是work out them? 给个确定的回答.