改为单数句They were old teaches of Class Two.You are English doctors.

They are old jeeps. (改为单数句) 改为单数句They were old teaches of Class Two.You are English doctors. they were old then改为否定句 They are old workers.（改为单数句） They were happy with their lunch.【改为单数句】 they aren't apple trees.改为单数句? they are old computers改为单数形式 there were two old ladies at the beach.（改为单数句） 改为同义句：They joined the army when they were 18 years old . are these old coats 改为单数句 Those are old storybooks.(改为单数句) They are old insects单数句 They are old monkeys?改成单数句 1.Are they old women?(改为单数)2.Do not let Tom go home.(改为肯定句)英语`!句型转换` Lucy and Lily could swim when they were five years old .改为否定句 No, they aren't.改为单数形式 把They are apples.改为单数句 Are they students?（改为单数句）