问题
单项选择题
Since the ground is wet, it ______ last night.
[A]must have rained [B]had rained[C]must rain
答案
参考答案:A
解析: 本句意为“因为路面上很潮湿,所以昨天晚上肯定下雨了”。这是虚拟句。
Since the ground is wet, it ______ last night.
[A]must have rained [B]had rained[C]must rain
参考答案:A
解析: 本句意为“因为路面上很潮湿,所以昨天晚上肯定下雨了”。这是虚拟句。