单选题 It is necessary that an efficient worker ______ his work on time.
A. accomplish B. accomplishes
C. can accomplish D. has accomplished

【正确答案】 A

【答案解析】[解析] 在It is necessary that...之后的从句中谓语需用虚拟语气(should)+动词原形，should可省去，只用动词原形。使用同一句型、从句谓语需用虚拟语气的形容词还有：(It is) important/vital/essential/urgent/advisable/natural/desirable等。