题目内容：
A、hadn t had completedB、didn t have completed
C、couldn t have completed
D、cannot have completed
参考答案：
选择题：We () the project on time without your kind assistance.
- 题目分类：大连理工大学
- 题目类型：选择题
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If there () no air and water, all living creatures would die.
If there () no air and water, all living creatures would die.
It was ()fine a day yesterday () we all went out for a picnic.
It was ()fine a day yesterday () we all went out for a picnic.
They find a house, agree a price, and take out a ()through their building society.
They find a house, agree a price, and take out a ()through their building society.
From our house on the hillside, we can () the whole of the harbour.
From our house on the hillside, we can () the whole of the harbour.
It s high time that we () the historical old buildings.
It s high time that we () the historical old buildings.