完形填空。 A: Excuse me, Jim. Who's the boy 1 the playhouse? B: Which boy? There are five 2 over there. A: The one in a brown T-shirt. B: Oh, 3 Joy's brother, David. A: Who's David? B: He's 4 friend. We're in the same class. A: Is he 5 ? B: No. He's from the USA. (     )1.A. under (     )2.A. boy (     )3.A. that’s (     )4.A. I (     )5.A. England B. on B. boys B. she’s B. me B. English C. at C. girl C. this is C. my C. American D. in D. girls D. I’m D. mine D. America