[单选题] _____you can make delivery one month earlier no business is possible.

1、[单选题]There is _______ doubt that many of them are faulty, some of them leak and others fail to write without making blots.

• A、some
• B、without
• C、little
• D、a little

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2、[单选题]Please send us the amendment ______ L/C immediately or we shall not be able to ship your order on time.

• A、of  
• B、to 
• C、as to 
• D、with

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3、[单选题]We carefully looked ____ the handling of your order.

• A、into
• B、in
• C、on
• D、for

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4、[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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5、[单选题]Your name and address _______ to us by your Chamber of Commerce.

• A、have given
• B、give
• C、have been given
• D、was given

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