Despite the publisher's efforts, the book didn't get as much ______ as expected.

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

The security system employs _______ recognition technology to grant access authorised personnel.

She was _______ such a talented singer that she won the singing competition easily.

The children played together _______ they had known each other for years.

I think punishment for poaching animals is not as _______ it should be.

If we _______ vulnerable species from extinction, we will help preserve biodiversity