Which idiom means ‘try every possible course of action in order to achieve something’?

Which idiom means ‘try every possible course of action in order to achieve something’?

  1. leave no stone unturned
  2. take one to task
  3. ride the high horse
  4. give a wide berth

Which spell is correct word(s)?

Which spell is correct word(s)?

  1. Encyclopedia Britannica
  2. Encyclopidia Britannica
  3. Enciclopadia Britannica
  4. Enciclopedia Britannica

BCIC is looking _______ engineers for recruitment.

BCIC is looking _______ engineers for recruitment.

  1. at
  2. for
  3. on
  4. after