Ответ:

  1. a) the — geographical names such as “the Sahara” take the definite article.
  2. a) broke out — a war breaks out.
  3. c) of — the expression is “consist of”.
  4. b) hardly — “hardly” means “almost not”.
  5. c) has been working — an action continuing from the past to the present.
  6. a) tall — the structure is “as ... as”.
  7. c) is raining — the action is happening now.
  8. c) to be — the construction is “know somebody to be”.
  9. The answer options for item 9 are not visible in the photograph, so the exact choice cannot be determined. The likely form is a past form after “said”, for example: were going or were to go, depending on the missing options.