(届安徽省马鞍山市高三第一次教学质量检测英语试卷)I have a big dream — I want to go into space, _______ will take some time to realize, I guess.
We have done things we ought not to have done and ________ undone things we ought to have done.
The two ladies are ________ the same age, but there seems to be ten years ________ them.
The train ________ arrive at 11∶30, but was an hour late.
While building a tunnel through the mountain, ________ .
I planned ________ to see you last week, but I was ill.