We___such great achievements without your efforta:were unable to _英语解答

We___such great achievements without your effort
a:were unable to make
c:couldn't have made

人气：169 ℃　时间：2020-06-01 10:29:37

解答

选c
因为without 有虚拟的意思,如果没有你的努力,我们不可能取得如此大的成功.虚拟句中用完成时