People are busy buying gifts, cleaning and decorating the house and cooking traditional foods to welcome Tet holiday now.

We watched as the plane disappeared behind the clouds.

The consequences of the typhoon were disatrous due to the lack of effective measures.

The situation seems to be changing minute by minute.

Ask Mum for permission to go out now. She looks like she’s in a good mood.

In my experience, freshmen today are different from those I knew 25 years ago.

I told you clearly and definitely not to write your answers in pencil, Smith!

I didn’t think his the comments were very appropriate at the time.

The related publications are far too numerous to list individually.

In the 1960's the upper level of Pennsylvania Station in New York City was torn down and replaced by Madison Square Garden.

He resembles his brother in appearance very much, which makes his friends unable to recognize.

Sports and festivals form an integral part of every human society.

He made one last futile effort to convince her and left home.

Hypertension is one of the most widespread and potential dangerous diseases.

Peter didn’t mean to be disrespectful to his teacher. He just couldn’t control his temper.

He was asked to account for his presence at the scene of crime.

If people’s interference with the environment decreases, more species will survive and produce offspring.

Try to eliminate fatty foods from your diet.

The fer-de-lance, a kind of viper, is one of the most poisonous snakes.

During the recession, many small companies were eradicated.

The Bali Tiger was declared extinct in 1937 due to hunting and habitat loss.