Efforts should be made to ______ the communication problem existing between teenagers and their parents.

单选题

Efforts should be made to ______ the communication problem existing between teenagers and their parents.

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判断题

All cargo should be through security checks.

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判断题

According to SMCP， names used should be those on the chart or Sailing Directions in use. Should these not be understood, latitude and longitude should be given.

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单选题

Meat should be kept in cold ________ to keep fresh.

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单选题

The first step should always be Job Set up and last should be Close Up or Clear-Up.

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