Titan, one of Saturn’s             , has a thick atmosphere.

There is a lot of interest in doing experiments in the             conditions.

Neptune is bright blue             it is named after the Roman God of the sea.

In the mid-19^th century, scientists discovered that Mars had some similarities                     Earth.

Mars is called the Red Planet due to its                      surface.

There have been many UFO              reported.

Scientists have been trying to find                 of aliens.

The UFO landed on a             area.

With the advance of the science and technology, our life changes greatly in various           .

Terrorists are using modern technology                     their destructive work.

Science and technology have              the life safe, secure and comfortable.

Recent             developments have made robots more user-friendly, andintelligent.

Many people believe that robots have made workers jobless,                        that is notnecessarily true.

Robots save workers from       dangerous tasks.

Little Pascal    a mechanical calculator which could do additions orsubtractions very quickly.

It is thought that driverless cars will transform the way we move     citiesin the future.

Facebook was built on the      of earlier social network sites like MySpaceand Bebo.

The police                               a good deal of criticism over their handling of the demonstration.

The old lady’s savings were considerable as she had            a little money each week.

When we went to Egypt he knew                   no Arabic, but within six months he had become extremely fluent.

Owing to the fog, his flight from Tokyo was                        

Please                    from smoking until the plane is airborne.

The burglar’s presence was betrayed by a                  floorboard.

Enough money has been raised to                              the hospital’s survival.

What               the smoke and the noise, the party made me feel quite ill.

            receipt of your instructions, I immediately sent a telex message to Algeria.

These suggestions are             to be accepted by the majority of members.

I am never free on Tuesday evening as I have a                    arrangement to goto the cinema with a friend.

My passport                last month, so I will have to get a new one

            receipt of your instructions, I immediately sent a telex message to Algeria.

Nations that live in concord are nations that live together in peace.

His emotional problems                      from the attitudes he encountered as a child, I think.

The party’s election                proved to be successful.

Six novels a year, you say? He’s certainly a              writer.

It takes roughly 4,000 pounds of petals to make a single pound of rose oil.

I                 some rice on the floor of the chicken coop.