1．(1)He is considered to be an expert in this field.
(2)Taking everything into ________，she decided to work in the company.
2．(1)He never fails to write to his mother every week.
(2)The success or ________ of the plan depends on you.
3．(1)Chemistry was her favourite subject at school.
(2)Pay attention to the ________ when you’re doing the experiment.
