The new supermarket announced that the first to purchase goods on the opening day_______ get a big prize.

It is required that under no circumstances ______ betray ourselves even if there are temptations like money or beauty.

We'd better wait     more minutes. I think Jeff will come soon,

I’m very glad I have my own room in my house. I ____ do all I like in it.

Something terrible       have happened if Li Chang was not coming to eat in his restaurant as he always did.