句型转换。(8分) 小题1:These are some orange pencil boxes. (改为单数) ___________ is an orange pencil _________. 小题2:That is my friend.(改为复数) ___________ __________ my friends. 小题3:My pencil is in the desk.(划线提问)___________ your pencil? 小题4:These keys are on the table.(改成一般疑问句)__________ __________ keys on the table? 小题5:I know his last name. (改为否定句) I __________ know his last name. [