Cancer is _________ second only to heart disease as _________ cause of death．

the; a

/; a

a; a

the; the

The ability to store knowledge makes computers different from every other machine _________ invented．

ever

thus

yet

as

It was because of bad weather _________ the football match had to be put off．

so

when

why

that

She was so _________ in her job that she didn't hear anybody knocking at the door．

attracted

absorbed

drawn

concluded

I have kept that portrait _________ I can see it every day, as it always reminds me of my university days in London．

which

where

whether

when

My father often sees to _________ that my spare time is properly occupied．

me

one

/

it

Hardly _________ the helicopter _________ when the waiting crowd ran toward it．

had; landed

has; landed

did; land

was; landing

_________ might be expected, the responses to the question were very mixed．

As

That

It

What

The ancient Egyptians are supposed _________ rockets to the moon．

to send

to be sending

to have sent

to have been sending

Every means _________ tried but without much result．

has been

have been

are

is