China is one of _______countries in the world.
— Why don’t you buy a new car now?—________ I don’t have enough money.
I think you won’t pass the coming English exam ______ you work hard from now on.
---Can you think of any_______tips to protect yourselves against crime?---I have no idea.
Nobody has the right to laugh at others _________ he is right.
Look, there is “u” and “s” in the word university .