It might have_______ your notice but I am very busy at the moment.
Occasions are quite rare ______ I have the time to spend a day with my kids.
Two middle-aged passengers fell into the sea. ______, neither of them could swim.
---Waiter! ---______ ---I can’t eat this. It’s too salty.
A harmonious society is like a symphony — each person contributes a small sound, but when __with other sounds, it becomes beautiful music.
___________________ to sunlight for too much time will do harm to one’s skin.