请教02-05的几道语法题,谢谢

Newfish

4.The midge __ to any of several species of small flies, refers to a mosquito-like insect with slender wings and body, long legs, and antennae.

(A)which a term applied

(B)a term applied

(C)is a term applied

(D)applied a term

答案是B,能帮忙看一下吗,谢谢

9.A television camera produces an image by convening __ receives into a series of bright and dark dots.

(A) and it

(B) it

(C) what it

(D) that it

答案是C,D的that 和it 是不是重复了,谢谢

12.Areas of fertile soil called deltas, usually __ are formed by mud deposited at the mouth of a river.

(A)triangular in shape

(B)their shape is triangular

(C)they have a triangular shape

(D)triangular shape

答案是A,为什么D 不可以呢?

21.Bacteria and similar one-celled organisms reproduce by cell division, each of the daughter

A

cell then beginning a new life as a distinct organism.

B         C             D

答案是B,是不是each of 后面要复数吗?

25. Addressing themes that were unique American, the poet Walt Whitman celebrated

A                      B                                    C

the lives of ordinary people.

答案是B,如何改呢?

很多题不懂,不好意思啊,谢谢

dengfu

4.The midge __ to any of several species of small flies, refers to a mosquito-like insect with slender wings and body, long legs, and antennae.

(A)which a term applied

(B)a term applied

(C)is a term applied

(D)applied a term

答案是B,能帮忙看一下吗,谢谢

1 句子的主干midage refers to； a term……做同位语

2 what= sth that~用D前面少一个宾语

3 形容词性的短语做后置定语

4 嗯

5 American是一个形容词，前面要副词修饰

Newfish

谢谢