6.Allen _______ any good job since he came to New York City two years ago.A.hasn't found B.didn‘t find C.doesn't find D.hadn‘t found7.“Let me _______ you,”said my boss,“you should call me immediately after you arrive at the airport.”A.ask

6.Allen _______ any good job since he came to New York City two years ago.A.hasn't found B.didn‘t find C.doesn't find D.hadn‘t found7.“Let me _______ you,”said my boss,“you should call me immediately after you arrive at the airport.”A.ask
6.Allen _______ any good job since he came to New York City two years ago.
A.hasn't found B.didn‘t find C.doesn't find D.hadn‘t found
7.“Let me _______ you,”said my boss,“you should call me immediately after you
arrive at the airport.”
A.ask B.advise C.remember D.remind
8.The boys spent the whole morning _______ possible answers to the question.
A.discuss B.and discussing C.discussing D.and discussed
9.This village ______ to be the place in which Ernest Hemingway,one of the
greatest American writers,wrote this story.
A.is believing B.is believed C.believes D.believe
10.It's reported that by the end of last month the sale of the company ______ by 10%.
A.has risen B.had been rising C.had risen D.has been rising
A
7.D8.C 9.B 10.C,可我不懂为什么这么选.

6.Allen _______ any good job since he came to New York City two years ago.A.hasn't found B.didn‘t find C.doesn't find D.hadn‘t found7.“Let me _______ you,”said my boss,“you should call me immediately after you arrive at the airport.”A.ask
6 句子中有since这样的标志性词语出现,所以首选完成时 排除B C
又因为Allen没找到工作 是两年前持续到现在的 所以排除D（D是过去开始并持续到过去结束）
所以选A
7 let me remind you意思是“让我提醒你一下吧”按照后句BOSS的意思 很容易就选择D
8 这题就不用多思考了 固定搭配 sb.spend sometime.＋（in）doing sth.
9 这个村庄是被人们相信是这个伟大的作家写小说的地方
be believed是“被认定的意思”
你可以理解为be believed（by people）的意思
10 这题就是我和你在第6题中提到的
过去开始到过去结束 用过去完成时态 排除A D
又因为rise是不及物 不用被动 所以是选C
以上是我的解答
不懂的可以问我
其实我也只是个高中学生^_^

since表示从过去到现在，因此主句要用现在完成时
remind有提醒的意思
spend+时间+in+doing sth 这里in可省略
sth is believe to be=It is believed that+从句 客观事实用一般现在时
到过去某一时间为止用过去完成时，且rise为不及物动词，不用被动

第一句是现在完成时。
第2句是词义的问题。REMIND 有提醒的意思。
第3句。SPENT DOING STH。固定句式
第4句是被动句。BE DONE 的形式。
第5句是HAD DONE 公司销售量提高10%/没有被动意思，排除BD。因为是过去完成。选C