A.If they had discussed before the final presentation, they would not have regretted it now.
B.If only they could discuss before the final presentation.
C.They wish they had discussed before the final presentation.
D.If it hadn't been for the discussion before the final presentation, they regret it now.

A.If they had discussed before the final presentation, they would not have regretted it now.
B.If only they could discuss before the final presentation.
C.They wish they had discussed before the final presentation.
D.If it hadn't been for the discussion before the final presentation, they regret it now.

A.But for the final decision to grant the most three excellent students, the university discussed and considered the candidate's potential.
B.Hardly had the university discussed and considered the candidate's potential when they finally decided to grant the most three excellent students.
C.Only after the university discussed and considered the candidate's potential that they finally decided to grant the most three excellent students.
D.Not until the university discussed and considered the candidate's potential did they finally decided to grant the most three excellent students.

A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.

A.Mặt Trăng với Trái Đất. 
B.Mặt Trăng với Mặt Trời.
C.Trái Đất với Mặt Trời.
D.Trái Đất với Mặt Trăng.

A.My mother last cooked chicken soup for one week.
B.My mother hadn't cooked chicken soup since last week.
C.My mother hasn't cooked chicken soup since last week.
D.My mother didn't cook chicken soup one week

A.My mother last cooked chicken soup for one week.
B.My mother hadn't cooked chicken soup since last week.
C.My mother hasn't cooked chicken soup since last week.
D.My mother didn't cook chicken soup one week