He has ___D_ on his farm.A.20 head of cattles B.20 heads of cattles.C.20 heads of cattle D.20 head of cattle.请高手讲下,这个题为什么要选D而不选B呢,我有点不懂,请讲的详细点,我将感激不尽!

He has ___D_ on his farm.A.20 head of cattles B.20 heads of cattles.C.20 heads of cattle D.20 head of cattle.请高手讲下,这个题为什么要选D而不选B呢,我有点不懂,请讲的详细点,我将感激不尽! he has a cut on his left hand什么意思 he has no hair on his head改为同义句he has( ) ( ）head he is not enough to support himself.he has to d____ on his parents He usually has the big party at home on his birthday对划线部分提问at home on his birthday. he usually has abig dinner at home on his birthday对at home on his birthday提问 he has his breakfast at He told me taht his father has gone to the other city on business. He usually has a big dinner _at home on his birthday__(对划线部分提问） He has to help his parents at home on Saturday改为一般疑问句 What he experienced as a child has a deep effect on him all his life 英译中 这句话有错吗?he has short hair on the top of his head Mike fell off his motorcycle and hit his head on the tree.Now he has a bad___________. his working什么的意思 词性 he has poor eyesight because of his working on the computer too much. my trousers are too small for him,he has to put on his own(为什么不用his own one) Look at man!He has a sock on one foot but nothing on his ___foot.A.anotherB.otherC,the other He can’t go on holiday because he ( ) his leg.选项:a、brokeb、has brokenc、had brokend、breaks 英语翻译As a scientist,he has nerver given up his research on pandas,so he _____ _____ succeed.