Mary and Lucy have been keeping______with each other since kindergarten.

admin2012-03-17  20

问题 Mary and Lucy have been keeping______with each other since kindergarten.

选项 A、on
B、off
C、up
D、back

答案C

解析 本题主要考查介词与动词keep搭配的辨析。keep up with sb.意为“和(朋友)保持联系”,符合句意。
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