Mark the letter A, B, C or D on your answer sheet to indicate the word of phrase that is OPPOSITE in meaning to the underlined part in each of the following question.

In most countries, compulsory military service doesn’t apply to women.

A. mandatory

B. essential

C. optional

D. required

Tro thực vật cũng là một loại phân kali vì có chứa:

A. KNO₃

B. KCl

C. K₂CO₃

D. K₂SO₄

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions

– I have gone to the doctor’s to have a checkup.

 - You _______ You just had your check-up last week!

A. don’t need to go

B. needn’t go

C. didn’t need to go

D. needn’t have gone