【B7】A．assistB．serveC．satisfyD．dominate

【C18】A．prominentB．definiteC．permanentD．dominant

【C12】A．indispensableB．responsibleC．sufficientD．dominant

【C17】A．ensureB．meetC．satisfyD．assure

【C20】A．assistB．complyC．adhereD．abide

【C11】A．serviceB．serveC．assistD．support

It was difficult for the police to ________ the angry crowd.A、hesitateB、pacifyC、satisfyD