单项选择题
_________luck would have it, we arrived in time to catch the 8:00 o'clock flight to Madrid.
单项选择题 _________nothing to eat, he had to go to bed without supper.
单项选择题 Under no _________should we allow Jane to meet the young man again.
单项选择题 Studies show that most adopted children want to know who their _________parents are.
