__________ causes many serious problems, one of which is that wild animals lose their homes.

The puppy was born with a heart problem and was only survived for a few hours.

Alexander Fleming, __________ discovered penicillin, was awarded the Nobel Prize in Medicine in 1945.

Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction in each of the following questions.

Thanks to the Internet, we can communicate with each other instant, regardless of where we are.

Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.