It was quite a serious mistake,____caused by carelessness.
It’s already 10’clock. I wonder how it ______ that she was two hours late on such a short trip.
English became the official language for business _______ the fact that the population was largely Chinese.
_______good service, the restaurant also offers different kinds of traditional Fujian dishes.
To make members of a team perform better, the trainer first of all has to know their ______ and weaknesses.
There was such a long queue for coffee at the interval that we _____ gave up.