_____ we were worried about was _______ they could manage to control the pollution.
| A．That; how | B．That; whether |
| C．What; that | D．What; whether |
Millions of people have been forced to leave their homes ______ the heavy storms and floods.
| A．apart from | B．as a result | C．in regard to | D．due to |
Our club is open to adults only. ______ your children have entered without permission.
| A．There seems to be | B．It seems to be |
| C．There seems that | D．It seems that |
He _____ have gone to Shanghai, for I saw him a moment ago.
| A．must | B．can’t | C．mustn’t | D．can |
Nowhere _______ find the necklace ______ by her husband in celebration of their tenth wedding anniversary.
| A．could she; giving | B．she could; giving |
| C．could she; given | D．she could; given |
We need to put safeguards ______ to prevent this type of accident occurring again.
| A．in mind | B．in trouble | C．in general | D．in place |