She ________ a model before she _______ a superstar.
| A．have been, became | B．had been, become |
| C．had been became | D．has been, become |
---Look, what have they done?
---Sorry. I think if I __________ another chance, I’ll do it better.
| A．give | B．will be given | C．will give | D．am given |
If it had been fine yesterday, we could have watched that air show. But it _____________ all day.
| A．has rained | B．had rained | C．rained | D．rains |
Which of the following pictures means “Please don’t make any noise”?
If our parents do everything for us children, we won’t learn to depend on _________.
| A．them | B．us | C．themselves | D．ourselves |
---All the oil in the world will have __________ some day.
---Yeah. What shall we use for power at that time?
| A．given away | B．put away | C．run out | D．set out |