I ________a very interesting programme on the radio this morning.
| A．listened | B．heard | C．saw | D．watched |
____, he does not know the answer.
| A．As he is a teacher | B．As he is teacher |
| C．A teacher as he is | D．Teacher as he is |
We were ____ to go out for a camp ____ it began to rain.
| A．hardly; than | B．around; as | C．about; when | D．nearly; while |
____ several times, the young scientist still kept on doing his experiments.
| A．Having failed | B．Having been failed | C．Failed | D．To fail |
It was last October ____ they finally came back to their hometown.
| A．when | B．that | C．what | D．until |
My pen is missing. I can’t find ____ anywhere.
| A．one | B．this | C．that | D．it |