Natural resources are conserved for their biological, economic, and recreational values,  _______ their natural beauty and importance to local cultures.

.............. had the curtain been raised than the light went out.

Teachers can tell their students to use mobile apps like "PIAZZA” to access course materials and also to post questions about specific subjects, all _______ can be done in the classroom or outside the classroom.

Choose the correct answer in each sentence.

 Kim Legend,  _________  performance in the musical Shadow Eyes attracted critical acclaim, is planning to retire next month.

In 2006, the news agency Reuters withdrew from sale 920 pictures taken by a photographer because two images taken in Lebanon were .................. to have been digitally manipulated.

Don't worry! Our new product will keep your bathroom clean and ..................

Vitamin D is necessary to aid the ................ of calcium from food.

Choose the correct answer in each sentence.

The store's annual sale event was a huge success as a result of the advertisements that were placed with local    --.

Nonrenewable resources include fossil fuels and mineral deposits, such as  _______ ore and gold ore. 

Choose the correct answer in each sentence.

 The warranty for all Buddy passenger cars is ------ for two years from the date of purchase.

It is difficult to assess the full ........... of the damage caused by Hurricane Sandy, one of the most destructive storms the U.S. has had in quite some time.

The waste water from bath, showers, sinks and_______, and rainwater can be collected in a tank.

Deserts are often composed of ________ and rocky surfaces.

Choose the correct answer in each sentence.

-------- the television coverage of the general election, a number of high-profile candidates were interviewed live on air.

I revised my views _____ comments from colleagues.

I didn't ____ out to be a millionaire - I just wanted to run a successful business.

With all due respect, I think your comments are ................

Choose the correct answer in each sentence.

An immediate  ___________  to a customer inquiry is essential unless it needs to be forwarded to a technical representative.

I enjoy ............. busy. I don’t like it when there is nothing     .

I don’t know how many ................. , but it sounds like that they have a dozen.

Choose the correct answer in each sentence.

The government ____________   all businesses to ensure their tax returns are completed on time.