Elephants have their own way to tell the shape of an object and ________ it is rough or smooth.     

---_________ she can’t find her keys? She’ll be locked out all night.---You are right. I’d better call her to check if she’s OK.

 I once heard him ____ that a rainbow was a bridge from earth to heaven.

____ has been heated discussion over which country bakes the world’ s best pizza: Italy, where pizza began or the US, where it was globalized. 

 In which part of the play is it　　　　Lily will play a role?