[单选题] We shall _____ insurance against all risks.

1、[单选题]We would ask you to do every thing probable ____ punctual shipment.

• A、ensure
• B、ensuring
• C、ensured
• D、to ensure

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2、[单选题]_____ your Enquiry No. 123, we are sending you a catalog and a sample book for your reference.

• A、ccording 
• B、s per  
• C、s
• D、bout

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3、[单选题]If you desire to _______ your goods against all risks, we can provide such coverage at a slightly higher premium.

• A、guarantee
• B、guard
• C、cover
• D、protect

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4、[单选题]The buyers will pay the extra premium if the requests that insurance ________ more than 110%.

• A、covered
• B、be covered
• C、cover
• D、to be covered

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5、[单选题]Please effect payment when the draft _______.

• A、expires
• B、due 
• C、falls due 
• D、falls expiration

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