All people, they are old or young,rich or poor,have been trying their best to help those in need since the disaster A even if B whether C no matter D however
—Why didn't he attend the meeting yesterday? —__________ he caught a bad cold and now he is in hospital.
Many years ago, he dreamed of becoming the first person __________ both South and North Poles.
The __________ of his aim depends largely on himself.
I was about to go out __________ he came in.
The goods __________ well, so they __________ out quickly.