I was just _______ calling her up _______ she came in．

about to; while

on the point of; when

on the point of; while

about to; when

_______ in thought, he almost ran into the car in front of him．

Losing

Having lost

To lose

Lost

While building a tunnel through the mountain, _______．

an underground lake was discovered

there was an underground lake discovered

a lake was discovered underground

the workers discovered an underground lake

The _______ people were running about the _______ hall, _______ with panic．

frightened; burning; shouting

frightening; burning; shouted

frightened; burnt; shouting

frightening; burnt; shouting

You can never imagine what great difficulty I have _______ your house．

found

finding

to find

for finding

The flu is believed _______ by viruses that like to reproduce in the cells inside the human nose and throat．

causing

being caused

to be caused

to have caused

_______ straight on and you’ll see a church．You won’t miss it．

Go

Going

If you go

When going

_______ the programme, they had to stay there for another two weeks．

Not completing

Not completed

Not having completed

Having not completed

After a long walk, I was not _______ tired and couldn’t go any further．

a bit

bit

little

a little

It is said in Australia there is more land than the government knows _______．

it what to do with

what to do it with

what to do with it

to do what with it