1.These books eaach___ too much .A.cost B.costs 选哪个?cost的过去式跟原形一样，过去时用A可以吗？

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1.These books eaach___ too much .A.cost B.costs 选哪个?cost的过去式跟原形一样，过去时用A可以吗？

1.These books eaach___ too much .A.cost B.costs 选哪个?cost的过去式跟原形一样，过去时用A可以吗？
1.These books eaach___ too much .A.cost B.costs 选哪个?
cost的过去式跟原形一样，过去时用A可以吗？

1.These books eaach___ too much .A.cost B.costs 选哪个?cost的过去式跟原形一样，过去时用A可以吗？
B
动词前面加了个each,主语变成了each,成了单数,所以后面的动词要用第三人称单数.

each指每一个，为单数，选B

选A，主语是these books，不是each，each是同位语，但是不能决定谓语的单复数形式。

b
因为books后面有each，所以就代表是每一本书，所以就是要用单数

These are ()() my books. Are these books ( )(your)? These books are _____. These a___ my English books. Are these books all yours? 改错：These are ours books These are the__(students)books John,are these books----(your) These are ( )(她的)books Are these students' books?对错 These---(be)his English books What about these books here? These books are distributed freely. These are her books.These books areThese are her books.These books are (填完整,改同义句) 这两个句子哪个对?这两个句子哪个对，1.How much do these books cost?2.How much these books cost? these are 后面要加some吗?如these are some books还是these are books 1.what kind of books do you like reading?2.why do you like these books 3 what do you think of reading books 求60字作文 these are english books .—— are chinese books.