题目

 I shall take you back to Beijing _____ you are well enough to travel. A. presently B. promptly C. immediately  D. shortly   答案：C假如你是Bill, 你的好朋友Sam发来电子邮件，请你下周末去他家做客。你下周末没空不能去。请用e-mail回复Sam，并说明不能在下周末拜访他的三条原因，50词左右。(5分)