To be vacant in upper story ? ( کمزور دماغ)

A) To pass away

B) To make false appearance

C) To indulge in meaningless flights

D) To be feeble minded

To beat the air : (بے سود کوشش کرنا)

A) To move activily

B) To act foolishly

C) To make useless efforts

D) To act Slowly