His mind was________on one thing: how to break the record in the game.A、concentr

游客2023-09-29  27

问题 His mind was________on one thing: how to break the record in the game.

选项 A、concentrated
B、described
C、observed
D、depended

答案 A

解析 concentrate意为“集中注意力”,可与on搭配构成固定短语concentrate sth. on sth. ,意为“全神贯注于”,符合题意。describe意为“描述”,不与on搭配;observe意为“观察,发现”,也不与on搭配;depend常与介词on搭配,意为“依赖”,一般不用于被动语态。
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