[求助]请教几道语法题

hendragom

请教几道语法
1. （Most） fish swim by (moving) their tails from (side to side) , with (little relatively) body undulation.


2. There are a series of large-scale wind patterns (all over) Earth (are called) prevailing winds that (have a direct) effect (on weather) and climate.

3.(In) June, 1846, (near) Sacramento, California, a (number) of new settlers rebelled in the Bear Flag Revolt and (proclaiming) California an independent republic.

4.A mutation (is result) of a definite biochemical (change in) a gene that causes the offspring to vary in (some) characteristic (from) the parents.
请问，选哪个，为什么。谢谢

gre3333

1. d --> relatively little

2. b --> called

3. d --> proclaimed

4. a --> is the result

btw，有关语法的问题，mm可以直接发帖到toefl语法区。