Question

4. He rushed back to take a picture. The rainbow had gone.
a. He rushed back to take a picture, so the rainbow had gone.
b. When he rushed back to take a picture, the rainbow had gone.
c. Because he rushed back to take a picture, the rainbow had gone.

Answer 1

C. The correct way to buy a sentence would be cause effect.

Answer 2

Answer:

b

Explanation:

The others are not correct grammar.