Organize the following into a formal E-mail by referring to Sample 3 &4 in Task 2. Write each letter in the appropriate brackets.参考Task 2的 Sample 3&4，将下列内容整理成正式的电子邮件。 A: Dear Yuzu, B: Best wishes,Dory C: Hope to hear from you soon. D: We are considering sending some of our staff on a training course on Construction Site Safety. E: Do you have a suitable course available for the next few months? If so please let me have the dates and times plus costs.