政府采购的监督管理部门是（）。A.各级人民政府B.各级人民政府财政部门C.各级人

You ______ all those calculations! We have a computer to do that sort of thing.

A) needn't have done B) must not have done

C) should not have done D) can not have done

You ______ all those calculations! We have a computer to do that sort of thing.

A．needn't have done

B．must not have done

C．shouldn't have done

D．can not have done

You ______ all those calculations! We have a computer to do that sort of thing.

A．needn't have done

B．must not have done

C．should not have done

D．can not have done

You ________ all those calculations! We have a computer to do that sort of thing.

A) needn’t have done

B) must not have done

C) shouldn’t have done

D) can not have clone

You______ all those calculations! We have a computer to do all that sort of thing.

A．wouldn"t have done

B．mustn"t have done

C．needn"t have done

D．hadn"t done

A.needn't have done

B.shouldn't have done

C.must not have done

D.can not have done

A、needn't have done

B、shouldn't have done

C、must not have done

D、can not have done

You ______ all those clothes! We have a washing machine to do that sort of thing.

A．needn't have washed

B．shouldn't have washed

C．must not have washed

D．can not have washed