---- Do you know Jack well?
---- Certainly, we _________ friends since ten years ago.
| A．were | B．have made | C．have become | D．have been |
The room must _____ up right now. It’s too dirty.
| A．be cleaned | B．be cleaning |
| C．clean | D．cleaned |
, the rain stopped when we went out for a walk.
| A．Lucky | B．Luck | C．Luckily | D．Luckless |
The old man lived but he didn’t feel .
| A．alone; lonely | B．alone; alone |
| C．lonely; alone | D．lonely; lonely |
It was dark I couldn’t see anything.
| A．too; to | B．such; that |
| C．so; that | D．as; as |
We must help each other and _____ each other.
| A．learn | B．learn to |
| C．learn from | D．learn with |