【題目】In order to find the missing child, villagersall they can over the past five hours.
A.did
B.do
C.had done
D.have been doing

【答案】D
【解析】句意:為了找到失蹤的孩子,村民們在過去的五小時(shí)里做了他們所能做到的一切。根據(jù)時(shí)間狀語“ over the past five hours,”可知從過去到現(xiàn)在 將來還有可能繼續(xù)進(jìn)行,直到找到孩子為止,故用現(xiàn)在完成進(jìn)行時(shí)。選D。

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