PRACTICE TEST 11- Đại từ nhân xưng, Đại từ sở hữu và Đại từ phản thân
Xem toàn bộ quiz

Scientists have not been able to cure AIDS, _______ any vaccine against the disease. A. nor they have found B. nor have they found C. not they have found D. no have they

51/100

Scientists have not been able to cure AIDS, _______ any vaccine against the disease.

nor they have found

nor have they found

not they have found

no have they

Giải thích

Chọn đáp án B