____ the instruction book for the main engine a few minutes ago.A.read B.readed C.reads D.is选哪个 为什么

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____theinstructionbookforthemainengineafewminutesago.A.readB.readedC.readsD.is选哪个为什么____theinstructi

____ the instruction book for the main engine a few minutes ago.A.read B.readed C.reads D.is选哪个 为什么
____ the instruction book for the main engine a few minutes ago.
A.read
B.readed
C.reads
D.is
选哪个 为什么

____ the instruction book for the main engine a few minutes ago.A.read B.readed C.reads D.is选哪个 为什么
A a few minutes ago 表示是过去的时间,而read的过去式和过去分词都是自己