that you didn’t care about this matter at all, I should not have wasted my time explaining it to you.
We'd better set off or it will be dark __________ we know it.
They often use wood as fuel to __________ coal.
The policeman __________ to be reading a newspaper. In reality, he was watching the man near the window.
Athens __________ the birthplace of western civilization.
I didn't tell him __________ news at once because I wanted to give him __________ surprise.