That was the first time __________ I __________ face to face with the president.
---It’s a wonderful party.—It’s very nice of you to come.___.
He ___ at the enemy, without saying a word.
She didn't answer the phone.She ___ be asleep.
___ people gather there, talking about the film about Comrade Lei Feng.
I can't remember where I have put that book.Maybe they are ___ which one is not correct.