When _______how a statue from distant Greece could have appeared in China, researchers explained that no doubt this was a result of Alexander the Great’s influence.

What do you mean by saying there are onlyten ticketsThere be twelve.

_____ will you stay there for the show— Until the day after tomorrow.

I usually _______ a bike _________ from Monday to Friday.

Mr．Black is willing to do ______________ Mrs．Black tells him to do．