Inthatschool,Englishiscompulsoryforallstudents,butFrenchandRussianare_________.
A、specialMr.Smithgradually_____aknowledgeofthesubject.
Anearlytypewriterproducedlettersquicklyandneatly;thetypist,_____couldn'tseehisworkonhismachine.
—Youlookupset.What’sthematter.
—Ihadmyproposal_______again.
Thedoctorshareshisphonenumberwiththepatients__________theyneedmedicalassistance.
China'simageisimprovingsteadily,withmorecountries__________itsroleininternationalaffairs.
