【題目】Rick has learned a lot about Chinese culture________he came to China．

A．before

B．when

C．until

D．since

【答案】D

【解析】句意：自從Rick來到中國，他已經(jīng)學(xué)到了很多中國文化。本題考查引導(dǎo)狀語從句的連詞的用法。before在……之前；when當(dāng)……時(shí)候；until直到……為止；since自從。由從句用一般過去時(shí)，主句用現(xiàn)在完成時(shí)可知設(shè)空處用since引導(dǎo)時(shí)間狀語從句，故選D項(xiàng)。

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