Some of my friends are good at English while other are good at Mathematics.

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

I think she will be suitable for the work because she has been working like a teacher for a long time.

Little have people done to alleviate the sea pollution caused by the factories in central Vietnam, haven’t they?

What happened in New York were a reaction from city workers, including firemen and policemen who had been laid off from their jobs.

Mr. Smith, along with her cousins from Canada, are planning to attend the firework display in Da Nang, Vietnam.

By the turn of the century, most of the inventions that were to bring in all the comforts of modern living has already been thought of.

The Red Cross organizes and leads relief assistance missions after natural disasters such as floods, tsunamis, earthquakes, and homelessness.

The assumption that smoking has bad effects on our health have been proved.

If I could speak two languages last years, I would have got a good job.

In a federal form of government like that of the United States, power is divided between the legislative, executive, and judicial branches.

I like the fresh air and green trees of the village which I spent my vacation last year.

The most sensitive way to resolve a family problem is by open discussion.

The chief of police demanded from his assistants an orderly investigation, a well-written report, and that they work hard.

The number of women earning Master's Degrees have risen sharply in recent years.

Those who had already purchased tickets were instructed to go to gate first immediately.

Did you say that you will have a lot of things to do the following week?

The deadbolt is the best lock for entry doors because it is not only inexpensive but installation is easy.

Students suppose to read all the questions carefully and find out the answers to them.

I’m not used to go to school late. I prefer punctuation.

After spending two days arguing about where to go for their holidays, is was decided that they shouldn’t go anywhere.