The girl has been lonely since her mother ______________.
—What do you want to be in the future, Lucy? —I want to be _____ pilot. It is _____exciting job. A. a; a B. a; an C. the; an
— It’s cold here. — OK. I___________ the window.
He likes to sleep with the windows ____________.
— Are you willing to live on Mars(火星)? — ___________ It sounds exciting, but it still worries me.
Stephen lives in a ___________ flat with a big balcony. And he often chats with his friends _________ the balcony.