He made up his mind to devote his life pollution happily.
| A．to prevent, to live |
| B．to prevent, from living |
| C．to preventing, to live |
| D．to preventing, from living |
What ____________ at nine o’clock last Sunday morning.?
| A．was you doing | B．were you doing |
| C．are they doing | D．do you do |
An earthquake _______at Dachaidan County in Qinghai province on the morning of April18.
| A．happened | B．rocked | C．took place | D．appeared |
No one knows ____________ in fifty years.
| A．what will our life be like |
| B．what is our life like |
| C．what our life will be like |
| D．what our life is like |
There is going to_________ a football game on TV this evening.
| A．have | B．hold | C．be | D．has |
My father will be back ______ the morning of May 15.
| A．in | B．at | C．on | D．since |