They believe that burning fossil fuels is the main cause of air pollution.

She came into the room while they ________ television.

We are talking about the writer ____ latest book is one of the best-sellers this year

He started investigating the case a week ago

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Wild animals ______ in their natural habitat will have a better and longer life than those which are kept in protected areas.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The robot manufacturer got the outdated robots _______ for the next generation robots.

It is advisable that _______ a career objective at the start of his/her resume.

She strikes me as a very effective teacher