Question

John's nervous because he .......... such a difficult test before has never taken never took

Answer 1

Ответ:

john's nervous because he had such a difficult test before

has never taken

never took

Объяснение:

Потому что слово BEFORE значит когдато. получается что это предложение в прошедшем времени и надо писать не Have а Had

Answer 2

Ответ:

has never taken

Объяснение:

John IS nervous, значит это ситуация в настоящем времени,

Раньше, до этого такой ситуации не было никогда

В таких случаях употребляем  Present Perfect  - has never taken

+ слово -маркер  - never

Answer 3

It seems like your sentence is incomplete, but I'll try to help based on the information provided. It looks like you're trying to convey that John is nervous because he has never taken such a difficult test before. Let me provide a more complete response:

John's nervous because he has never taken such a difficult test before. The phrase "never took" is the past simple tense, indicating that in the past, John did not take difficult tests. The use of "never" emphasizes the absence of any previous experience with challenging exams, contributing to his current state of nervousness.

The present perfect tense, on the other hand, is used to describe an action that occurred at an indefinite time in the past or has relevance to the present. In this case, "has never taken" suggests that up until now, John has not had the experience of taking a difficult test. The present perfect emphasizes the connection between the past and the present, highlighting the impact of this lack of experience on John's current emotional state.

In summary, John is feeling nervous because he is faced with a new and challenging situation – taking a difficult test – and his lack of previous experience in similar scenarios is contributing to his apprehension.