the old house is dirty.They________it for years. A.didn't clean B.hasn't cleaned C.don't cleaned
D haven't cleaned
Form ten to twelve yesterday,I ______at the park.
A was running B were running C ran D run
人气：133 ℃ 时间：2020-04-04 23:03:08
解答
D 强调对现在的影响（is dirty 很脏 ） 用【现在完成时】
B,表示在Form ten to twelve yesterday这个过去时段正在做的事,用【过去进行时】
推荐
猜你喜欢
