18. She ______ stop whomever she met to tell the story about her Ah Mao.

Earth is believed ______ by an object the size of Mars at some point in the distant past before itssurface cooled.

I have got _______ good news for youYou are to change _______ trains in Changsha and take_______ fast one

don’t feel well. I think I’m______with the flu.

_______ for the new US president, the crisis was already upon them[ ]