I had meant to meet you at the airport this morning but I was too busy for I ________ a report.
| A．wrote | B．was writing |
| C．have written | D．had written |
Tom’s mother kept telling him that he should work harder, but _________ didn’t help.
| A．he | B．which | C．she | D．it |
The poor man, __________, ran out of the dark cave.
| A．tiring and frightened | B．tired and frightened |
| C．tired and frightening | D．tiring and frightening |
The stone bridge __________ last year is very beautiful.
| A．built | B．was built | C．being built | D．to be built |
A driver should __ the road when .
| A．concentrate on; drive | B．concentrate in; driving |
| C．concentrate to; drove | D．concentrate on; driving |
_________ in a friendly way, their quarrel came to an end.
| A．Being settled | B．Settled |
| C．Settling | D．Having settled |