The correct answer is choice 1.has

The correct answer is choice 1.has been using
Observed from the word for us to use present perfect continuous.
Therefore Choice 2 and 4 cut away.
Because are going to use and uses not be in the form of a present perfect continuous.
Choice 3 wrong because the subject is singular, so use have not. คำอธิบาย

ผลลัพธ์ (อังกฤษ) 1:

The correct answer is choice 1.has been usingObserved from the word for us to use present perfect continuous.Therefore Choice 2 and 4 cut away.Because are going to use and uses not be in the form of a present perfect continuous.Choice 3 is wrong because the singular subject, so use the description have not.

ผลลัพธ์ (อังกฤษ) 2:

The Correct answer is Choice 1.Has been using
Observed from The Word for Us to Use Present Perfect Continuous.
Therefore Choice 2 and 4 Cut Away.
Because Use and uses are Not Going to be in The Form of a Present Perfect Continuous.
Choice 3. wrong because the subject is singular, so use have not. Description.

ผลลัพธ์ (อังกฤษ) 3:

The correct answer is choice 1. Has been using
Observed from the word for us to use present perfect continuous.
Therefore. Choice 2 and 4 cut away.
Because are going to use and uses not be in the form of a present perfect continuous.
Choice 3 wrong. Because the subject, is singular so use have not. Explanation.