Giúp tui giải những câu trắc nghiệm trong hình này với ạ

Prepositions and phrasal verbs. 21. My father is responsible A. for В. in the household finances. C. on D. at 22. Today my sister can't help_ A. about the cooking because she's studying for exams. C. with groceries. C. at the rubbish. С. uр 25. Both men and women now work to contribute ...