Could you tell me when you will Australia on business? ( )

A．leaves

B．leave for

C．left

D．left for

They should these rules at the airport.  (   )

A．to obey

B．obey

C．obeyed

D．obeys

Tokyo is to the Shanghai.    (  )

A．south-east of

B．north-east of

C．east-south of

D．west-north of

Complete the following sentences as required (根据所给要求完成句子。每空格限填一词)
1.The Lis will stay in Bangkok for a week. (对划线部分提问)
________ ________will the Lis stay in Bangkok?
2.It is five kilometres from the park to our school. (对划线部分提问)
________ ________is it from the park to your school?
3.They'll be back in two days. (对划线部分提问)
________ ________will they be back?
4.We get to our school at 8 o'clock. (保持句意基本不变)
We________ ________our school at 8 o'clock.
We________our school at 8 o'clock.