Correct option is D
The correct option to fill in the blank is (d)
resume.
"Resume" means to begin again or restart after a pause. (फिर से शुरू करना) It fits the context where flights are restarting after a two-month gap.
Example: Office operations will resume from Monday.
Other options:
· (a)
retake: To take again (फिर से लेना) – incorrect usage here.
· (b)
advance: To move forward (आगे बढ़ना) – contextually unsuitable.
· (c)
proceed: To continue (जारी रखना) – doesn’t imply restarting after a pause.