3 feet equal/equals one meter.用单数复数?

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• 3 feet equal/equals one meter.用单数复数?
• 1把字母拼成单词 （riteneth) (gortsn) (eitcav) (nowrd) (roflo ) 2连词成句 (is in that what English)3day（反义词)4many(比较级)5right(同音词)6These books are Miss Gao's.（用Whose提问）7Is that a gray pencil?(作否定回答）8Is that a computer?(作否定回答）9Is that a cake?(作否定回答）10is what there one and(连词成句)11Hai Mei isn't in today.(改为同义句）12It's a pencil-box.(改为复数句）13That's OK.(改为同义句）14They are children.(改为单数句）15Jim Green is english.(用Amerrican构成疑问句）16My brother can spell hai name.(改为一般疑问句）17We g
• 英语好的朋友请帮我看一下下面的几道英语题下面几道题,我都不太明白,帮我选出答案,然后讲讲为什么?1、These kinds of clothes ___well,so the store has decided to lower their prices .这个应该用被动语态吗?为什么?a:don't sell b:are not sold 2、It was not until midnight that I ____to sleep last night.a:had gone b:was going c;went d:would go 选择那个3、Twelve inches ____one foot.应该用单数还是用复数?a：make b：makes c:is making d:will make
• 3 feet equal/equals one meter.用单数复数?
• 3 feet equal/equals one meter.用单数还复数?
• 请问,percent 后的谓语动词用复数还是单数?1、10 percent of apple ___2、10 percent of apples ___3、one percent of apple ___4、one percent of apples ___请问,上面4句的空白处的谓语动词分别用单数还是复数?并给出4句话的中文意思,
• 请问foot和feet作为英尺的意思也是单数和复数形式吗?一英尺和两英尺可以用one foot,two feet来表示吗?如果不对的话，正确的应该怎么说？
• 3 feet equal/equals one meter.用单数还复数?
• 已知O为坐标原点,点A,B分别在x,y轴上运动,且|AB|=8,动点P满足向量AP=0.6向量PB,点P的轨迹为曲线C：椭圆x^2/25+y^2/9=1,定点M（4,0）,直线PM交曲线C于另外一点Q.求三角形OPQ面积的最大值
• 求这几道题的简使算法,急.12.12/1.23*12.3 5.4*42/2.7 478/0.25/0.2/0.5/0.4 5.6*0.81/0.7/0.09