【C11】A．ofB．atC．onD．about

【C16】A．inB．atC．onD．with

Xi Jinping visited Russia ______ March 22nd, 2013.A: ofB: atC: onD: to

【C11】A．withB．toC．onD．from

【C5】A．inB．atC．onD．upon

【C9】A．inB．atC．onD．upon

【C7】A．ofB．forC．onD．in