He bought a computer because he wanted to store all the information that he had collected.

 He bought a computer because he wanted to store all the information that he had collected.

GRAMMAR (Ngữ pháp)

Đề bài:

a. Buying a computer because he wanted to store all the information that he had collected.

b. Although he wanted to store all the information that he had collected, he bought a computer.

c. He bought a computer for him that he stored all the information that he had collected.

d. He bought a computer to store all the information that he had collected.
d. He bought a computer to store all the information that he had collected.