1.Who will take over from Tom as manager when he retires? 2.His widow has taken over the running of his empire. Crunch time (idiom) - When people, companies, etc. have to make an important decision that will have a considerable effect on their future, it is crunch time.（關鍵時刻，緊要關頭）
1.It's crunch time on campus now. Most students are drinking coffee and studying all night for their final exams. 2.Recessions mean crunch time for debtors. With a heavy heart (idiom) –With a feeling of worry,fear or sadness.（心情沉重，不開心）
1.He told me the news with a heavyheart. 2.With a heavy heart, she turned to wave
good-bye. Needless to say (idiom) – As you would expect; obviously.（毫無疑問，無須多言）
Examples: 1. Needless to say, learning without thinking is useless. 2.Needless to say, I should have spent
more time on the report, but I just didn't have it.
In sb's hands; in the hands of sb (idiom) - In someone's responsibility, charge, or care.（由……掌握，由……控制）
1.His fate lies in the hands of the jury.
2.The disposition of the property is in his hands.