听对话和问句,选择正确答案。 ( )1.A、On business ( )2.A、writing with ( )3.A、In 1879 ( )4.A、Not good at grammar ( )5.A、The TV B、On trip B、drinking B、In 1897 B、can't write good composition B、The computer C、On picnic C、launching satellites C、In 1876 C、forget new words easily C、The light bulb