They _____ to be promoting a sport event when, in fact, they are selling cigarettes.

Seanu and Prabu are brothers, but they look very ________

People are wondering about his ______ behavior.

The company&rsquo;s new product was ______ advertised on TV.

If you use a word-processor, you can easily ________ another paragraph to your composition.

Oil pollution causes the hair to become matted, which reduces its _______ as a thermal insulator.

At least one-quarter of the medicines we buy in the developed world have their_____ in tropical forest plants.&nbsp;

The star throws off its outer layers in a gigantic _______________ and its core collapses.

He has made an important ________ in science.

produce

product

production

productive

productivity

Complete the following sentence!

 
While a star burns fuel, it will ____ an outward push that counters the inward pull of gravity.