单选题 The sentry guard dived into his ______ and closely observed the stranger towards him.
A．fortress B．exodus C．foxhole D．eviction

【正确答案】 C
【答案解析】[解析] 名词辨析
A．fortress堡垒，要塞；B．exodus大批的离去；C．foxhole[军]散兵坑；D．eviction逐出，赶出；因此C为答案。