He had little idea that it was getting so late, ___________ ?
The famous scientist, ____ a dinner party will be held tonight, is to arrive soon.
The driver could have survived, but he ____ the seat belt.
____ with a difficult situation, Mr Smith made up his mind ____ his boss for advice.
A bit more effort, I think, ____ the problem could be settled.
She told me that ______ was needed at that time was some good luck.