問題補(bǔ)充：
單選題
_____ your help, we _____ complete the work in time.A.Thanks to; were able toB.Thanks to; couldC.As; wouldD.Because; had to
網(wǎng)友答案：
熱心網(wǎng)友 1樓
A解析thanks to相當(dāng)于because of,此短語可放在句首或句尾，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，沒有做到可用couldn’t或wasn’t/weren’t able to.
