Dung beetles ______ an integral part of the successful management of diary farms

游客2024-09-08 25

问题 Dung beetles ______ an integral part of the successful management of diary farms in Australia over the past few decades.

选项 A、has become
B、have become
C、became
D、had become

答案 B

解析时态题。在由until(till，up to)now，up to the present，so far，in(for，over，during)the past(last，recent)few(several，two．．．)months(days．．．)等构成的短语作状语的句子中常用现在完成时。主语dung beetles复数形式，故B正确。

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Dung beetles ______ an integral part of the successful management of diary farms

strategies讲座中提到“Tobesuccessfulintheirstudy,studentsmustunderstandthec

GivingmooncakestorelativesandfriendsisanintegralpartoftheMid-autu

Asamanagementconsultant,Ihavethe______offlyingmorethanmosttraveller

Physiciansneed______expertiseinpainandsymptommanagementandskillsinco

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Ifyouareasuccessfullanguagelearner,you_____independently,actively,and

Industrialmanagementsistheaspectofbusinessmanagementthat______mostpro

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Dungbeetles______anintegralpartofthesuccessfulmanagementofdiaryfarms

_____dullhemaybe,heiscertainlyaverysuccessfultopexecutive.A、Although

—Areyouclosetoyouruncleandaunt?—______A、Yes,mostlyonholidayB、No,the

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