A、he agreed
B、does he agree
C、he agrees
D、did he agree
答案：D
解析：参考解析:倒装语序、过去时态。前面使用的否定not until，后面部分应该采用倒装，又因为这里的时间是the day before yesterday(前天)，时态为过去时态。这个句子的正常语序应该是He did not agree to give a speech at the meeting until the day before yesterday故D为正确答案。句意:直到前天，他才答应在会上做发言。
A、he agreed
B、does he agree
C、he agrees
D、did he agree
答案：D
解析：参考解析:倒装语序、过去时态。前面使用的否定not until，后面部分应该采用倒装，又因为这里的时间是the day before yesterday(前天)，时态为过去时态。这个句子的正常语序应该是He did not agree to give a speech at the meeting until the day before yesterday故D为正确答案。句意:直到前天，他才答应在会上做发言。
A. give away
B. give off
C. give himself away
D. give himself up
解析：参考解析: give sb.up意为"自首，表示对...没有希望”。例: It was so late that we had given him up.已经很晚了，我们认为他不会来了。give away意为"送掉，分发，放弃，泄露，出卖，让步，陷下”。例: He was invited to attend the closing ceremony of the tournament and to give away the prizes.他应邀出席锦标赛的闭幕式并颁发奖品。He gave away the secret without meaning to.他无意中把秘密泄露了。give off表示"发出，放出(蒸汽、气味等."。例: This kind of coalgives off dense smoke.这种煤烧起来直冒浓烟。根据题意，故选D。
A. to throw
B. throwing
C. throw
D. to be thrown
解析：参考解析:英语中有些固定的搭配如: had better最好/would rather...than...=would...rather than.../“宁愿……而不愿……”/cannot but“必须，一定”/can not help but“不得不” /may as well“不妨; 也好”等后要接不带to的不定式: as well do sth. ，故选C。
A. by
B. with
C. to
D. for
解析：参考解析:本题考查固定搭配。Provide的用法有provide sb. with sth. 或provide sth. to sb，意思是"向某人提供某物"或"把某物提供给某人"，their employees为人，故正确答案为B。句意:在工作日，很多公司为员工提供免费午餐。
A. Judged from
B. To judge from
C. Judging from
D. Having been judging from
解析：参考解析:译文:从他的外表来判断，他来自富有的家庭。考点:非谓语动词。解析:题目中分词的逻辑主语与句子的主语虽然不一致，但是也不能用过去分词，本题属于某些固定结构judging from/by...，表示"从...来判断"; generally/frankly speaking...，表示"一般/坦白地说..."，故选C
A. deciding
B. decided to
C. decide
D. having decided
解析：参考解析:本题考查动名词的用法。在介词before之后要用动名词，A和D的区别在于所表示的时态不同，A是现在时，D是完成时，根据句意，做出决定重在强调结果，正确答案为D。句意:在顾客决定购买东西之前，价格并非惟一要考虑的要素。
A. didn＇t he
B. he did
C. he could
D. did he
A. whose
B. which
C. whom
D. who
A. from which
B. on which
C. in which
D. for which
解析：参考解析:定语从句。which引导定语从句时候，如果在从句中作介词的宾语，那这个介词应该提到which的前面，作为关系代词的一部分。本题中，in an environment是固定搭配，which引导的定语从句修饰environment时,连接词应为in which，其他介词不能和environment搭配。句意:提供一个能够鼓励公司各个层次的员工都能提出建议的环境是很重要的。
A. Whatever
B. Which
C. That
D. Whichever
解析：参考解析:由whichever引导，表示"无论哪个"，其作用相当于no matter which。因为后面接有one，因而不能用whatever，故选D。
A. what
B. where
C. that
D. which
解析：参考解析: 句意: 经理给新员工讲解哪里寻找货物供应点。考查"疑问代词或疑问副词+不定式"可以在句中作宾语，其中疑问词由其在不定式中所担任的成分决定，在这里不定式缺状语。正确答案为B。
