_____ your help, we _____ complete the work in time.
A.Thanks to; were able toB.Thanks to; could
C.As; wouldD.Because; had to
A
thanks to相當(dāng)于because of,此短語(yǔ)可放在句首或句尾,to是介詞,后接名詞、代詞或動(dòng)名詞,而as或because后接的是從句,因此排除C、D,其次,當(dāng)表示過(guò)去有能力并實(shí)際上成功地做到某事,要用“was/were able to”不用could,沒(méi)有做到可用couldn’t或wasn’t/weren’t able to.
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