advertisements are of great help, I don’t think we should entirely rely on them.
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advertisements are of great help, I don’t think we should entirely rely on them.
| A．Since | B．While | C．Because | D．As |
试题答案
B
解析这题考查连词的用法，Since自从，While虽然，当…时候，Because 因为， As因为，当..时候，根据句意：虽然广告很有用，我想我们不该完全依赖它们。选B。