英语题……Those watchs are for usThose watchs are for us.改错怎么改?

英语题……Those watchs are for usThose watchs are for us.改错怎么改? Those are my___.A.pencil B.book C.watchs D.pens watchs和pens都是负数,应该怎么选? 将下列句子改为负数形式（英语）Is this your backpack?It's a black cat.That's my brother.Where's your parent.还有一个改错Those(A)aren't(B)her(C)watchs(D) 改正下列句子的错误 Those aren't her watchs Do you his friend? Those are my ( ).A pencil B boxes C watchs D pens Those are my___ A pencil B watches C watchs D pens选哪个？Why? ar英语怎么发音 动漫的AR卡是什么意思……? 线性代数的题,6、向量组a1,a2…ar线性无关的充要条件是（）（A）a1,a2…ar均不为零向量（B）a1,a2…ar中任意两个向量的分量不成比例（C）a1,a2…ar中有一个部分向量组线性无关（D）a1,a2…ar中 she always watchs TV (on saturday evening)括号部分提问英语怎么改写?英语 英语she always watchs TV (on saturday evening)括号部分提问she always watchs TV (on saturday evening)括号部分提问怎么改写? Mr(O)、Ar(O)是什么意思,如题我没打错……，r是角标…… those加可数名词,例如those women are very hard-working.这是什么语法.为什么不是those are women very hard-working.或者是those are very hard-working women?我英语文盲…… 英语读音题根据划线读音补全单词1.teach/er/ s_ccessful 2.f/our/ p_ _tuguese 3.h/ou/se ar＿ ＿nd 4.J/a/pan Br__zil __dvanced5.h/ar/d adv__nced p__ ＿tner 这些是人教的我们没学/……/中间的是划线部分 英语改病句,1.do they play games every day?yes,they are2.they have three watchs 英语填空题对括号部分提问those are ( eggs.) 对括号部分提问 ------------ ---------------those? 求做线性代数题目1.设向量组A1,A2,……,Ar线性无关,作一下线性组合：B1=A1+K1*Ar ,B2=A2+K2*Ar ,……,Br-1=Ar-1+Kr-1*Ar证明：B1,B2,……,Br也线性无关 一道英语题Are those your parents?作否定回答