Speaking of all the songs he has written, I think this is probably his ____ one.
____ he had not hurt his leg, John would have won the race.
We all know that, __________, the situation will get worse.
---The last one __________________ pays the meal. ---Agreed!
Some pre-school children go to a day care center, _____ they learn simple games and songs.
.The news came as no surprise to me. I ______ for some time that I would fail in the exam.