Choose the letter A, B, C or D to complete the sentences with given words

Question: Helen/ do / this English test/ good / than I do.

A. Helen does this English test gooder than I do.

B. Helen does this English test better than I do.

C. Helen is doing this English test good than I do.

D. Helen do this English test better than I do.

Viết các số theo thứ tự từ bé đến lớn:

8 9 ;   5 6 ;   17 18