Air pollution, together with littering are causing many problems our large, industrialy cities today.

The author Susan Glaspell won Pulitzer Prize 1931 for her play, Alison’s House.

Mining over 2,000 years ago, copper is one of the earliest unknown metals

He looked like e had been in some strange land where age advanced a double pace.

We are not allowed to enter this construction site. A block of flats is being buil here and it is dangerous to walk because you may get hurt by a fallen r some other objects.

Since it was so difficult for  American Indians to negotiate a peace treaty or declare war their native language , they used a univere understood form sign language.

Pigeons, like many migratory birds, read he positions of the Sun and stars in order orient them.

Last night, when I was reading, I heard the door to open and saw the shadow move s the floor.

All the staff Tam’s film are expected to do some overtime, if the need rises.

Being a child of noble birth, his name was famous among children in that schoo

Gunpowder, in some ways the most effective of all the explosive materials, were mixture of potassium nitrate, charcoal, sulfuric.

The athlete has tried his best to ________ his SEA Games title and record. 

Justice is often personified as a blind folded woman to hold pair of scales.

The average cat sleeps sixteen hours for a day short interval called ‘cat naps'.

The Southeast Asian Student Sport Festival is the biggest sporting event _____ the youths in the region. 

Although he is 103 but, he still does a lot of work in the flat

The woman of whom red car is parked in front of the bank is a famous star.

You wanted me to tell you about what I was doing here and how was my life.

Either humans and animals learn by experience, and what is learned influences the plannin and carrying out of simple actions.

Philosophy, the quiry into the nature of human knowledge, it is still a very popular subject among university studen

The coal is the world’s most abundant fossil fuel