Astronomers do not know how many galaxies there are, but it is thought that there is millions or billions.

After a while, the track we have been following became thick undergrowth

By the end of the month, I’ll be working for firm for a year.

The majestic Rocky Mountains stretch each way from Mexico to the Arctic.

A conductor uses signals and gesture to let the musicians to know when to play various parts of composition.

Without any hesitation, he did decision not to take the course

Although she is 103 but, she still does a lot of work in flat.

We didn’t eat here last week, ____ we?

Due to the forecast, the tunnel will be finished next year.

Any material that is attractive b magnet is by definition “magnetic”

The international Red Cross, which has helpe so many nations, won the Nobel Peace Prize three times for their efforts to reduc suffering

Jack London, whom was known for his stories of Alaska, lived there during Klondike gold rush.

Foreign students who are doing a decision about which school to attend  may not know exactly where choice are located.

Several comet are discovered each year, but very few of them bright enough to be seen without aid of magnification

Hardly he had got downstairs when phone stopped ringing yesterday afternoon

The steam engine is usually thought of as a relative modern invention, but the Greeks built kind of steam engine ancient times

It _________Lan who always helps him in his trouble.

I passed all my exams - I’m …………!

Mark the letter A, B, C, or D to indicate the underlined part that needs correction in each of the following questions: The teacher found a great deal of mistakes in his students’ writing.

Why didn t you give me a call yesterday? We  .................  discuss everything together.

The common field is about four inches long and has a three – inched tail