"______thefriendshipbetweenourtwopeoplelastforever!",andwiththissincerehope,thepresidentconcludedhisspeech.
Thisrobotissupposedtosavealotoflabor,butitremainsaproblemifit______.
Wehadn'tmetfor20years,butIrecognizedher_____Isawher.
Thegreatuseofschooleducationisnotsomuchtoteachyouthings_____toteachyoutheartoflearning.
Modernscienceandtechnologyhas_____communicationbetweenpeoplefarapart.