【单选题】
The _____problem of bringing a spaceship back from the moon has been solved.
【单选题】
The man told me that by the end of the week he _______ away from his hometown for 20 years.
【多选题】
______________ , we went home.
③
When the problem solved
④
When the problem was solved
【判断题】
A: How is your father? B: He has passed away. A: Really?
【判断题】
Ever since he arrived, he has been complaining constantly about the weather.
【单选题】
He used to in a small village, but now he has been used to in the big city.
【单选题】
Australia has its own identity ,which is very different from that of Britian.
【单选题】
She was wondering whether he has been writing anything new ____
【单选题】
The teacher asked her ____ at home.
【单选题】
20. He has received many presents from admirers, from the_____ to the valueless..