The Sanlu Milk Powder event is a clear indication that food safety is a big problem; nobody can ___ all foods are secure to us, but we are sure that the situation is turning for the better．
| A．acknowledge | B．guarantee | C．identity | D．clarify |
No one can stop him, the boy is determined to do something.
| A．even if | B．once | C．now that | D．although |
Only after the woman had her own child how difficult it was to be a mother.
| A．did she realize | B．she had realized | C．she realized | D．had she realized |
You may your teachers for help when you have problems.
| A．turn up | B．turn down | C．turn to | D．turn off |
No one can prevent the plans out.
| A．to be carried | B．from carrying | C．not to carry | D．from being carried |
.One of the men held the view the book said was right.
| A．that | B．what that | C．that what | D．whether |