Multiple choice

Directions: Fill in the blank with the appropriate option.

These talks have continued intermittently, often stalling _____ Iran's apparent intransigence.

  1. across

  2. over

  3. from

  4. by

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'Stall over' is a phrasal usage that implies 'being hampered by or disturbed by something'.