Choose the correct answer in each sentence.

Tickets purchased online with a discount code are always cheaper than  ______________  purchased at a ticket stand.

Choose the correct answer in each sentence.

The   __________ benefit of the new machinery is that it reduces production time by seven hours per week.

Choose the best answer among A, B, C or D that best completes each sentence: Lan regrets not ____ gone there with her friend.

“A bat can hear from a long distance”. “________”

After a lengthy debate, the spokesman announced the board had ________ an unanimous conclusion.

All of us ......... obey the traffic laws.

Can you play _______ piano?

You can dress_________you like.

Our holy books tell us that man ——————- mortal.

Natural  _______ are grouped into two categories, renewable and nonrenewable.

Choose the correct answer in each sentence.

The second-generation XR1280 unit is------- to its predecessor, except for its reduced weight.

The Heritage Education for Sustainable Development project aims ____ strengthening the linkage between culture and education for sustainable development.

……….advice he had got from most of his friends was to turn down………..offer. 

Conservation, sustainable use and protection of natural resources including plants, animals, mineral deposits, soils, clean  _______, clean air, and fossil fuels such as coal, petroleum, and natural gas.

After she _____ at the hospital for 2 years, she_____ to give up the job yesterday. 

Choose the correct answer in each sentence.

Members who renew their newspaper subscription at least one month prior to its -------will receive a 5 percent discount.

 A  _______ resource is one that may be replaced over time by natural processes, such as fish populations or natural vegetation, or is inexhaustible, such as solar energy. 

Nobody likes his behavior, ............ ?

................ in business, one must be prepared to take risks.

This leather bag is a real bargain! It's ________ cheap!

Of all the paintings in the gallery, it was this one that really _______ my eye.