生产经营单位必须依法参加（），为从业人员缴纳保险费。 A．工伤社会保险B．养老保险C．医疗保

_______ the game had begun that Jim and Tony arrived at the sports ground.

A. It was not until

B. It was until

C. Not until

D. Until

Not until the game had begun ______ at the sports ground.

A．should he have arrived

B．had he arrived

C．did he arrive

D．would he had arrived

Not until the game had begun ____________ (他到达操场的时候).

Not until the game had begun______at the sports ground.

A．had he arrived

B．would he have arrived

C．did he arrive

D．should he have arrived

Not until the game had begun______at the sports guound.

A．had they arrived

B．would they have arrived

C．did they arrive

D．should they have arrived

Not until the game had begun________at the sports ground.

A．should he have arrived

B．had he arrived

C．did he arrive

D．would he had arrived

Not until the game had begun_____at the sports ground.

A．should he have arrived

B．had he arrived

C．did he arrive

D．would he had arrived