Fred, who had expected how it would go with his daughter, had a great worry______ his mind. A. on S. in C. with D. at
—I want to know if I__________ smoke here. —No, you _________.Could you see the sign “NO SMOKING” there?
Everyone has periods in their lives ______ everything seems very hard.
I can’t thank you ______ much because without your help I ______ have won the first prize.
The big city has always been the dream career destination of college students. But of late a trend of heading back home ________a part of future job considerations.
A severe drought over the past months has left 7.5 million people without ________ drinking water in two southwestern Chinese provinces.