——Who’s the man over there?Is it Mr. Black?——It______be him. He’s much taller.

—You will never believe that it took us two hours to get to the restaurant.—Really? You ________ in a traffic jam.

It’s beyond our comprehension that Jim, who tops the class in English, ________ have difficulty translating such a simple sentence.

—Where ________ I meet you tomorrow morning?—I haven't decided the place.But I'll call you soon. 

—Could I keep this book for another week?—Of course you        .