entered the office when he realized that he had forgotten his report．A. He hardly hadB. H

问题补充：

entered the office when he realized that he had forgotten his report．

A. He hardly had

B. Had he hardly

C. Hardly had he

D. Hardly he had

答案：

A. He hardly had

B. Had he hardly

(答案→)C. Hardly had he

D. Hardly he had

解析：hardly在句首，主句要倒装，故可以排除其他三项。