第16题: [单项选择]--Why did he cry yesterday --He was excited, for he ______ his mother’s letter. A. expected B. was expecting C. had expected D. had been expecting 参考答案:D 答案解析:[解析] 完成进行时强调动作发生在过去一直持续到现在,而动作期待母亲来信是在收信这个过去的动作以前,故选用过去完成进行时。故本题答案为D。
第28题: [单项选择]We were four scores left behind with five minutes to go, so the game looked completely ______. A. irresistible B. irremissible C. irreplaceable D. irretrievable 参考答案:D 答案解析:[解析] 本题的后半句是说比赛看上去完全无法挽回了。D项“irretrievable不能挽回的”符合题意。其他三项“irresistible不可抵抗的;irresistible不能避免的;irrepl