Entering the room, I found Mary _______ at the desk and _______ a letter.
| A．seated; wrote | B．sitting; written |
| C．seating; writing | D．seated; writing |
The government should develop system to predict when wildfires occur and
give warnings in time.
| A．previous | B．reliable | C．reasonable | D．responsible |
There are a lot of signs men are more likely to have heart attacks than women.
| A．indicate | B．to indicate | C．indicated | D．indicating |
They intended to have the school better equipped，the local government was
not able to get enough money to do so.
| A．unless | B．while | C．although | D．once |
the key to the car when my boss came towards me.Finally I could drive him
home as usual.
| A．Never had I found | B．Seldom did I find |
| C．Hardly had I found | D．No sooner did I find |
They do have a different to the problem of overpopulation.
| A．solution | B．opinion | C．decision | D．conclusion |