高中英语题解释一下,谢谢7\I found cat ____ under the bed,who had caught

7I found cat ____ under the bed,who had caught a mouse.
A.hiding B.hidden
answer:B 这个我不知道
8____this instrument should have put its work permit number on the box.反正看见这种,肯定选Whoever,因为有双重的指代作用
A.Whoever inspected B.No matter who examined
answer:A
9They arrived there at last,____ .
A.being tired and hungry B.tired and hungry
answer:B 形容词作后置
10We agreed to accept____ they thought was the best tourist guide.
A.whomever B.whoever
answer:B A选项那个词不存在
11Terry doesn't like the idea of his wife ____in that affair.
A.being involved B.to be involved
answer:A 动名词作后置定语
12____ I admit that there are still some problems about the traffic in
this area,I don't mean that it can't be solved.
A.Until B.As
answer:B 表示“当”
13"____are the Olympic Games held?" "They ____ once every four years."
answer:How often,occur 用法?How often问频率的,occur表发生
14Tom hopes to become a friend of ____ share his interests.
A.whoever B.whomever
answer:B 这个答案不对,B选项那个词不存在
15I don't have a job.I would find one but I ____no time.
A.had had B.have
answer:B 现在没时间,如果有,就会找.所以前面用了虚拟语气
16The prize winner stood on the platform,____.He could hardly keep
back his tesrs.
A.excited B.excitedly
answer:A 表示这个人是兴奋的,而不是动作兴奋
17Will you buy me a stamp if you____ a post-office.
A.will pass B.are passing
answer:B 我个人觉得没太大差别
18We often heard of people ____ in some countries.
A.being robbed and beaten up B.be robbed and beaten up
answer:A heard of someone doing something
19It's ____so easy as you imagine.
A.not nearly B.hardly
answer:A 你确定你没拼错答案选项?
20____ hearing the news,all of us jumoed with joy.
A.On B.By
answer:A 表示当
21Naughty as my brother is,____he is never late ____ his homework.
A.but...for B./...with
answer:B as引导从句,所以逗号后面是主句,不需要引导词了