【C15】A．consideringB．withC．concerningD．without

【C7】A．concernsB．concernC．concerningD．concerned

【C5】A．inB．withC．ofD．on

【C7】A．underB．withC．intoD．through

【C16】A．consideringB．asC．givenD．by

He subscribes to a number of journals______his subject.A．relatingB．overC．concerningD．aroun

He wrote to me ______ a business arrangement.A．concernedB．conceptionC．concerningD．revealin