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 |
相关试题
She is being pleased about it: she is very angry.
| A．free from | B．free of | C．out of | D．far from |
--- Who has eaten all the cake, Jim?
--- Oh, must be your two pet dogs.
| A．it | B．they | C．that | D．which |
“How could you lose so much money?” Charlie asked his wife, eyeing her angrily from
the kitchen table.
| A．at | B．across | C．through | D．on |
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