This problem may lead to more serious ones if ________ unsolved．

making

remained

keeping

left

The Chinese language ________ many Western languages ________ it uses characters which have meanings and can stand alone as words．

different from; in that

differs from; in which

differs from; in that

is different from; in which

The English language ________ the rules and vocabulary each group of people brought to Britain with them．

is consisted of

is made up of

composed of

consisting of

On average, these footprints are 14 to 18 inches long, 5 to 9 inches wide and much larger than ________ of a human．

that

it

those

one

Young as he is, David has gained ________ rich experience in ________ society．

the; the

a;/

/;/

/; the

A survey was conducted in 2002 by the Computer Security Institute, ________ that 90 per cent of the companies questioned had had their security system ________ in the previous year．

showed; broken into

showing; breaking into

showing; broken into

to show; break into

Our team has better players than the team from No．10 Middle School, but ________ we still lost the game．

therefore

somehow

otherwise

sometimes

When asked to say something, the first prize winner said that he owed his great success ________ many people, especially his parents．

for

with

to

in

This factory has been growing rapidly in recent years．This year's production is five times ________ it was ten years ago．

what

that

which

as

________ hundreds of millions of dollars each, the two candidates for the position of next President of the United States went on to launch campaigns and seek supporters．

To spend

Spent

Spending

Having spent