There seems to be two causes as I try to figure out __________ that prevents so many children from being as happy as before.
It is the first time that you have come to China, _____?
Through English we will be able to communicate _____ part of the world we come from.
She looks quite young _____ her age.
— Shall I go and buy two more bottles of beer? — No, I’ve already bought twenty. That _____ be enough for us two.
Whether by accident or _________, he arrived too late to help us.