_________ is a more formal word for 'try'.

We can replace 'mainly/mostly' with _________ to make it more formal.

Pollution is a _______ example of the impact caused by overpopulation.

Our ________ concern at the moment is how to improve the old heating system.

It is often argued that the _______ of human beings is born with them and will not change for their whole life.

In this class students are going to learn some general __________ of Marketing.

The ________ in Haruki Murakami's books is usually involved love, loneliness and how people evolve from emotional hardship.

The government has introduced a new _______ of the economy to improve national income.

To do a research, you need first to come up with a new ________.

Cuisine should be studied carefully as an important ________ of any culture.

The ________ of unemployed people has increased rapidly to 2 million this year.

This essay will cover solely the problem of air pollution and thus, water pollution is _______ its scope.

Air bags are a standard ___________ in most cars.

The ________ of sale figures showed that people tended to shop more often during summer months.

Scientists have held different views _______ the existence of life on other planets.

Japan's investment into Vietnam has great ____________ to the economic development.

A new ________ to teaching English speaking skill for young learners has been proposed in the meeting today.

To make a strong _______ for longer holidays, the writer discussed how this might help increase productivity at work.

It is not easy to raise people's __________ of environmental protection.