Must I be home before seven?_________。

[单选题]The diesel engine must be started before it can run by it self For this purpose （） has to be used.A . a starting systemB . the starting airC . a starting operationD . A, B and C

[单选题]Dirty oil must be （） before being used again.A . mixed with clean oilB . purifiedC . heatedD . strained

[单选题]It was natural that he( )the days before going home.A.countB.countedC.will

[单选题]The jury must( )the evidence before they reach a verdict.A.balanceB.enquire

[单选题]It was because of the heavy rain last night ______ I didn't go home before

It______about seven o’clock when Tom returned home for it was already dark outsi

[单选题]Mary told me that she ______ to the supermarket before coming home.A.goB.ha

Mary told me that she ______ to the supermarket before coming home.A. goB. had g

I ______ the whole of War and Peace by the time I was seven years old.A. was rea

[单选题]C．When I was seven, my father gave me a Timex, my first watch. I loved it, wore it for years, and haven’t had another one since it stopped ticking a decade ago. Why? Because I don’t need one, I have a mobile phone and I’m always near someone with an