Mr.Smith has taught chemistry in that school for more years_?a,than any teachers b,than anyone c,than any teacher d,than anyone eles .我知道答案,我想知道为什么选D一个个告诉我ABC怎么错了,

mr .smith has taught chemistry in that school for more years_?mr .smith has taught chemistry in that school for more years——?a,than any teachers b,than anyone c,than any teacher d,than anyone eles . Mr Smith ___ at this school since he ___ to Zhuhai.A:has been taught; came B:has taught; has comeC:has been teaching; has come D:has been teaching; came为什么选D?has been teaching是什么时态? Mr Smith has a _______ daughter Mr.Smith has a (v)big room. Mr Smith __________ at this school since he ________ Xiamen .A.has been teach,came B.has been teaching,came C.taught,came D.has been teaching,has come 1.Mr Smith ___ at this school since he ___ to Zhuhai.A:has been taught; came B:has taught; has comeC:has been teachin; has come D:has been teaching; came2.When did you start raising money for the Great Green Wall?A:Since two years ago B:Two years ago Mr Wang has taught _(they) English for three years Mr.Smith has taught chemistry in that school for more years_?a,than any teachers b,than anyone c,than any teacher d,than anyone eles .我知道答案,我想知道为什么选D一个个告诉我ABC怎么错了, Mr.Smith has been 什么hospital什么last month Mr Smith has a telephone.改为否定句. mr.smith has many pigs___his farm填介词 Mr Smith has nine daughters,and each has a brother.How many children does Mr Smith have at least? It was in the school ( ) Mr.Smith taught ( ) we studied.A.where B.that C.when D.what AB为什么? Mr.White came to our school in 2008,and since then he___us English.A.teaches B.taught C.has taught Mr.Smith is almost out of money .（保持原句意思） Mr.Smith has _____ _____money.马上要. Mr white_______in this school for20 years before he moved to LondonA has taught B taught C had taught 解释为什么选这个选项 Mr.Smith has been here since the factory opened为Mr.Smith has been here since the factory opened为什么用has been? Mr Brown has taught English in our school for 5 years.对for 5 years 提问.