The police are ______ to conclude that the cause of fire was a cigarette end.

Compared with male graduates，a(n)______small number of female graduates can get employed when they go job-hunting.

It’s hard for him playing against me.I’ve got nothing to play for,but for him,he needs to win so_______.

Recent studies have discovered that fathers uniquely contribute to the development of their children, _____ in low income families.

--- The earthquake last night was really terrible. --- ______, no people were injured or killed, and they escaped in time.