Ababymightshowfearofanunfamiliaradult,_______heislikelytosmileandreachouttoanotherinfant.
A、ifThefarmerhadtowearheavybootsinthewinterbecausethefieldsweretoowetand________.
Theoppositionleaders________thegovernmentfornottakingactionsooner.
Asyoulikepopmusic,__________Ilikeliterature.
Itisusefultoscience_______theearthasanobjectinspace.
Thestudentfoundthenovel_______.Itprovidedhimwithsomuchinformationaboutthesubject.
