Can I see the headmaster at the moment, please — I’m afraid not. He _______out. He _______ in 10 minutes.

I saw a lovely alien(外星人) near the New Bridge Airport last week— _______ There is no such kind of creature at all.

A terrible earthquake happened in Nepal _____ April 25th, 2015.

___________ work has been done to improve the people’sliving standard.

kindis trying to find new places inspace to live and get new resources, it is fine