按下列各小题括号内的要求改写句子，每空限填一词。
1. Meimei has to look after her little brother at weekends. (改为一般疑问句)
________ Meimei ________ to look after her little brother at weekends?
2. Both he and his deskmate have passed the exam. (改为否定句)
________ he nor his deskmate ________ passed the exam.
3. They are asked to write a diary in English every other day. (对画线部分提问)
________ are they asked to write a diary in English?
4. Didn't they tell you about it? (改为被动语态)
________ you ________ about it?
5. Will the 30th Olympic Games be held in London? Could you tell me? (合并成含有宾语从句的复合句)
Could you tell me ________ the 30th Olympic Games ________ be held in London?
