Whenhesuddenly________upthesubjectofgeneticengineering,therewasanembarrassedsilence.
Idon'tknowhowwecanmake________onthetimetableforanymorecourses.
________theconcerthadbegundidwerealizewhatasplendidshowitwasgoingtobe.
Ababymightshowfearofanunfamiliaradult,_______heislikelytosmileandreachouttoanotherinfant.
Ifyouwanttofindadecentlocationforyourownhome,________Mr.Smithforadvice.
Tostudyaforeignlanguage,__________.