The substance is very toxic. Protective clothing must be worn at all times.

Canada does not require US citizens to obtain passports to enter the country. Mexico does not require US citizens to do the same.

“I was not there at the time,” he said.

He was very tired but he kept on working.

You should have made your children do housework as soon as they were able to do so.

Start at once or you will be late.

His eel soup is better than any other soups I have ever eaten.

People warned us not to go out alone.

The water was so cold that the children couldn't swim in it.

The train should be here any minute now.

Due to the heavy snow, all buses have been cancelled until further notice.

The boss was annoyed that his secretary came to work late.

When the unemployment rate is high, the crime rate is usually also high.

Peter’s main subjects at university is electronics.

I last saw Bob when I was in Ho Chi Minh City.

Many doctors and nurses on duty during holidays don’t have time to relax. They don’t have time to meet up with their families.

If I were taller, I could reach the top shelf.

The number of accidents has gone down steadily since the speed limit was imposed.

Father said “Albert, if you break your promise, nobody will respect you.”

The girl forgot to set the alarm clock. Therefore, she is in a hurry now.

Peter told us about his leaving the school. He did it on his arrival at the meeting.