Choose the best answer: 
They have studied English ________ three years.

Williams  is working  ..........  an export company. He intends to apply .............. another job because he is not satisfied ............... the salary.

The boy accused his friend of___________ stolen his bicycle. 

A  lot  of  generous businessmen have _____ valuable  contributions to helping needy people.

They have made a substantial change; that means, they have made a(n)                    change.

Choose the best answer among A, B, C or D that best completes each sentence: Our main …….is to increase sales in Europe.

______ of you is going to be questioned by the police about your whereabouts at the time of the crime.

Prattchet Co. has. ............... turned to making most of its products from recycled materials.

Tom: " Sorry, I forgot to phone you last night” . 

Mary : “______________”

Choose the correct answer in each sentence.

Edward's Plumbing has six company- owned vehicles, two of  _________________  are now in the repair shop.

Choose the best answer A, B, C or D to complete the sentence.

Robots could even be part of security alerting you to possible fires that you are under ____ of virus

Choose the best answer among A, B, C or D that best completes each sentence: We must take preventive measures  …........ crime in the area.

Karen Solden will replace Harold Walker, ................. is being promoted to a higher position in the company.

Prior to the economic reform, the country had experienced many years of a ______________   economy.

Education is our first   ___________   now. We are trying to do what we can to make it  better.

............. a recent incident with one of the newly installed elevators malfunctioning, repairmen have been hired to check all of them.

Patterson Financial Firm’s recent acceptance of the Intemational World Development Award is a well .............. honor for this association.

Choose the correct answer in each sentence.

To participate in the Advantage Discount program,  _______________  the registration form on our Web site.

There are .............. girls in our class. 

AmberCreek is the brand name associated with the most ............... and efficient agricultural machinery in the province.

Salary ................. are verified after an evaluation performed every six months after starting employment