In the following questions, sentences are given with blanks to be filled in with an appropriate word(s). Four alternatives are suggested for each question. Choose the correct alternative out of the four. Google is one of the most popular search engines, it is_________ by the internet users.
DIRECTIONS: in the following question, a part of sentence is bold. Below are given alternatives to the bold part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose “No Improvement” option. Our progress was slow because of having to search for them at frequent intervals
Why are scientists searching for the existence of life on other planets ?
