Kate had paid him in advance, which _________ was a mistake.
-Are you satisfied with her answer? -Not at all. It couldn’t have been ________.
_______ the smoggy weather, the central government has taken action to deal with it.
The dictionary still ______ where I ______ it a moment ago.
-Are you firmly against Japan’s decision to purchase the Diaoyu Islands? -Of course. That is _______ our basic interest lies.
No student ______go out of school after eleven o’clock at night without the teacher’s permission.