Although knocked down by a car, he managed to _______ to his feet.
| A．stand | B．move | C．rise | D．struggle |
—Hey，you haven't been acting like yourself．Everything is OK?
—.
| A．Sure, it is | B．I'm fine，thanks | C．That's good | D．It's a pleasure |
Cheer up! Everyone may have periods in their liveseverything seems tough．
| A．which | B．where | C．when | D．that |
．piano is her main focus，she's also great at guitar．
| A．Since | B．Once | C．Unless | D．While |
With the nuclear crisis worsening in Iran, the world's attention is fixed again onis called the Middle East．
| A．which | B．that | C．what | D．it |
William found it increasingly difficult to read，for his eyesight was beginning to．
| A．disappear | B．fall | C．fail | D．damage |