Question

英语高手快来

语法填空：
1、Mary as well as her sisters_____(study)Chinese in China at the present.
2、Don't worry.All that can be done_____(do).
3、The police_____(search) for the murderer everywhere when he suddenly appeared in a theatre.
4、He is the only one of the students who _____(elect).
5、No bird and no beast _____(see) in the lonely island.
6、Every means ______(use) to prevent the water from being polluted.
7、Each of the passengers______(have) one seat in the ship.

可以的话，请详细说明。谢谢

Answer 1

1.studies(as well as 相当于with的用法，只根据在前的主语的单复数情况而定）
2.？是不是弄错了？
3.search,(应为警察们去寻犯人，所以用复数结构)
4.are selected(学生是被选择的，且who引导的定语从句是用来修饰students的）
5.(can) be seen
6.has been used(means意思是“方式/方法”，它是一个单复数同形的可数名词，即单数是means，复数也是means。如：a means, two means.第一句用every修饰means，指单数概念，所以动词用单数形式has，不用复数形式have)
7.has(强调each)
PS:如果还有不明白的可以追问我：）

Answer 2

1、Mary as well as her sisters__is studying ___(study)Chinese in China at the present.
2、Don't worry.All that can be done___has been done__(do).
3、The police___were searching __(search) for the murderer everywhere when he suddenly appeared in a theatre.
4、He is the only one of the students who __is elected ___(elect).
5、No bird and no beast __is seen ___(see) in the lonely island.
6、Every means ___has been used ___(use) to prevent the water from being polluted.
7、Each of the passengers__has ____(have) one seat in the ship.
主谓一致练习，这些都是常见结构，可以参阅 语法---主谓一致。

Answer 3

1、study
2\ done
3\ had been searching
4\has been elected
5\is seen
6\has been used
7\has