彼はその実験に成功することを確信している。の英語

He is sure of succeeding in the experiment.

I learned that his experiment was a success.

He persisted in the experiment until he was successful.

He is sure of passing the examination.

He is confident that he will pass the examination.

His success on the examination is due to his efforts.

His success of the examination is due to his efforts.

It's thanks to the phenomenal success of his study.

He is believed to have passed the examination.

He ascribed his success to hard work.

He works hard so as to succeed.

She is positive of passing the test.

He attributed his success to hard work.

He attributed his success to hard work.

He was successful in the attempt.

I am sure of his passing the exam.

He referred his success to the good teaching he had had.

He ascribed his success to his diligence.

He ought to succeed after such labours.

He attributed his success to hard work.

His success attest his diligence.

His success resulted from hard work.

He ought to succeed―It is quite natural that he should succeed―It is not wonder that he should succeed―after such labours.

He succeeded by dint of effort.

He succeeded in consequence of his diligence

He succeeded owing to his diligence

His success is due to his diligence.

His success is attributable to diligence.

He succeeded by virtue of his efforts.

He has succeeded by sheer diligence―by dint of industry.