求解几道英语选择题,我十分苦恼啊,自己还不会做,谢谢大家啦 ,

求解几道英语选择题,我十分苦恼啊,自己还不会做,谢谢大家啦 ,
1：
________ difficulties we may come across, we will help one another to get over them.

1.What
2.Whatever
3.Which
4.Whichever

2：The conference _______ a full week by the time it ends.
1.must have lasted
2.will have lasted
3.would last
4.has lasted

3：在下列每组单词中有一个单词的划线部分与其他的划线部分读音不同,找出这个单词,并把它前面的大写字母添入答题卡相应位置上.
1.museum
2.popular
3.dustbin
4.valuable

4：The new appointment of our president _______ from the very beginning of next semester.
1.takes effect
2.takes part
3.takes place
4.takes turns

5：There's a man at the reception desk who seems very angry and I think he means trouble.
1.making
2.to make
3.to have made
4.having made

6：_________, he was not able to work out the puzzle.
1.However he tried hard
2.Whatever he tried hard
3.However hard he tried
4.How hard he tried

7：All the other passengers on the ship gathered around me and watched me write as if I _____ a sidewalk artist drawing pictures of passersby.
1.am
2.are
3.is
4.were

8：The work-mates congratulated her ______ her promotion to the position of the general manager.
1.in
2.on
3.with
4.for

9：The articles _________ the magazine publishes are written by a famous school.
1.from which
2.which
3.and
4.of

10：It is in Iran ________ the family members participate in the wedding preparations.
1.that
2.where
3.in which
4.there

1 B 无论有什么困难
2 B by the time 连用的句子应该用什么时态,主要是看这个时间点发生在过去还是现在或将来.
从句用过去时,主句用过去完成时 或 从句用一般现在时,主句用一般将来时或将来完成时
3 dustbin 发[ʌ] 别的都发ju
4 A take effect 生效
takes part 参与,参加
takes place 发生；举行；就位
takes turns 轮流
5 B mean to do 打算
6 C 不管他怎么努力
However hard he tried =Nomatter how hard he tried
7 D 虚拟语气be变成were
8 B congratuate sb on sth 祝贺某人某事
9 A 这个杂志出版的一篇文章,
10 A 强调句