简答题：Directions:This part is to test your ability to do practical

Directions:
This part is to test your ability to do practical writing. You are required to write a letter of reply to an invitation according to the information given in Chinese below. Remember to write the letter on the Translation/Composition Sheet.
邀请人：王力　被邀请人：John Smith
内容：王力及其妻子邀请John Smith夫妇来家中参加儿子一岁生日宴。时间定于6月10号下午七点在皇家饭店举行。
回复：Smith回复自己将于近日回国处理公司要事，不能前往，表示歉意。