Inthatschool,Englishiscompulsoryforallstudents,butFrenchandRussianare_________.
A、specialScientistshaveobtainedmoreevidence___________plasticisfindingitswayintothehumanbody.
Will all those _____ the proposal raise their hands?
Hehasthe_____ofanathlete:hereallygoesallouttowin.
I can meet you at eight o'clock; _____ you can call for me.
We’d better discuss everything _______ before we work out the plan.
