66. cure I Aids / study I company I to find I scientific I to carry I.
A. The company is carrying out scientific study to find a cure for Aids.
B. The company is carrying out scientific study to find cure for Aids.
C. The company is carrying out scientific study find a cure for Aids.
D. The company is carrying out scientific study find a cure to Aids.
Bạn đang xem 66. - BAI KIEM TRA ANH