Whatarethekeyfeaturesofaresearchpaper?
Hedidn‘tseemtomind_____themusicwhilehewasstudying.
There______nothingmorefordiscussion,themeetingendedearlierthanexpected.
句子写作：”HappyChristmas“hesaid.
______thepopularityofrobotsinJapan,thecountry’srobot-productiongrowthisslowingdown.
