SO SÁNH BỘI SỐ: (half, twice, three times, four times...)

866/ With the newly built manufacturing facility in North Korea, the company will be able to produce______ as many units as before.
a. two
b. double
c. twice
d. second

<Longman TOEIC>

★ SO SÁNH BỘI SỐ: (half, twice, three times, four times...)
- Không được sử dụng so sánh hơn kém mà sử dụng so sánh bằng.
- Cấu trúc: S + số gia bội + as + much / many + N + as + ...
Ex: 
+ This encyclopedy costs twice as much as the other one.
+ Jerome has half as many records now as I had last year.
=> Answer is C