题目内容：
From: Jonathan Wong [mailto:jonathan.wong@hydetransport.com]Sent : Monday, October 27,2007 11:07 a.m.
To : John Devereux; Steve Tracey; Brian Kibble
Cc : Alfredo Chen; Jenny Lee
Subject: Visit to Global Logistics
On behalf of Alfredo Chert and Hydetransport Taiwan, I would like to thank you for your warm hospitality during our visit to Global Logistics. It was a pleasure meeting all of you and see-ing your operations and setup. We were very impressed with your 50 facility and your invest-ment in technology.
As we discussed, we would like to extend our gratitude by inviting you to Taipei when you are available in the 51 future. Please let me know when you would like to schedule your52 .
As a second step, we would also like further to explore your business ventures with Hyde-transport. As part of your plan to expand globally, we see much synergy and advantage for both parties to pursue a business partnership in Taiwan.
Thank you once again and I'm looking forward to your response.
Best regards,
Jonathan Wong
Director/Planning Group
阅读以上短文，回答题。
第50题答案是__________ A．secure
B．secured
C．securely
D．to secure
参考答案：
答案解析：