1.This factory opened twenty years ago (改同意句）

1.This factory opened twenty years ago (改同意句）
this factory _________for twenty years.
2.翻译句子：他这些天上哪儿去了?
3.有worry with 这个短语吗?
4.he said that english is difficult ,but i feel_______(different)
5.是study in a group还是study with a group
6.-oh Mrs king ,your dress looks nice.is it new?
-no,i ______it since two years ago.
A have had B have bought
7.-jack played the mouse.he did a very good job,only he___a few words in the middle.
-oh,he was too nervous.
8.return to your studies是什么意思?return for
9.developed是什么意思?是发达国家吗?
10.direction是方向的意思!
11.-are you going there with us?
-if Mary wants to go,_________.
12.翻译句子：any books including paper or notes should not be taken out of the classroom kept off during the test.
13.翻译句子：write your answers on the answer out of the classroom after the test
14.as a teacher,we should_____our students ____some advice.
A let;give B allow;to give
15.you are allowed to choose yourself 能直接说choose yourself,还是得说choose by yourself,或是choose all by yourself
16.great changes______(take)place since i left.
17.she smiled at him as he walked_____the door.
A across B thourgh
18.cloudy得比较级是什么?
19.he seemed_____（愚蠢的）to do it like that.
20.if you _____(work)hard,you _____(pass)the exam.
21.
22

不好意思嘞才看到乃的留言,嗯,其实ms答案已经很完全了~不过看到有些不对活着不完整,所以还是写一遍吧~
1,has opened
2,where has he been these days?
3,ms是没有的.
4,different,这里用形容词不用副词.
5,study with a group.
6,a.buy是一个非延续性动词,不可用于此处表达.
7,这个就不好说了,不知道这一句应该表达什么意思,如果只要形式符合的话,有很多都可以填,比如,added,missed,left,and so on~~
8.return to your studies：转回学习上去.return to 就是转回/重回（某个话题、某种状态）的意思.如聊天扯得远了,就说,把话题return to 哪里哪里.
return for,报答.一般前面加的介词是in.
9.developed只是一个过去分词,当然,developed country就是发达国家的意思.在此处developed是形容词“发达的”的意思.与此对比的通常是developing country（发展中国家）.一个是过去分词,有完成之意,一个是现在分词,有进行之意.词根develop就是发展（n）的意思.
10.direction就是方向的意思,也有些别的意思,以后你会学到.
当然可数啦,不是还有四面八方呢（in all directions）么~
11.i will（这个说实话不确定啦,因为通常都会说：sure,if Mary wants to go）
12.翻译句子：any books including paper or notes should not be taken out of the classroom kept off during the test.
在考试期间,所有书包括试卷,本子都不可以带离考场.
13.翻译句子：write your answers on the answer out of the classroom after the test
在考试完成后,请在教师外将答案书写在答题纸上.（虽然我不知道为什么……）
14. b.
15.应该用by yourselt.在人称一致的情况下,动词后面要有个介词才能跟反身代词.饿,说的不太清楚,希望你能理解~（你说的最后一个也可以的~）
16.taken.这个我负责任的告诉你,前面三个答案都是错的.take place表发生,这样的词是不能用被动的,直接用taken place（完成时）就好.话说这是我们高二才学的,初三都有这样的题,啧啧~
17.b,across一般表示的是横穿.through一般表示的是纵穿.
18.cloudy这个词做“多云的”时候一般没比较级,如果说某人脸色阴沉,比较级就是more cloudy.应该不是cloudier,这个词是一个名词,具体是什么忘记了,可以去词典查一查.
19.silly.表示“愚蠢的”这样的词还有很多,都可以.
20.work,will pass.具体不知道是什么语境,这个就是最简单的了.
呵呵,你真是个好学的小孩呀~