【C8】A．benefitB．profitC．favorD．oblige

Steel workers made a（) against wage reduction last week.A protestB profitC prayD propos

【C11】A．BenefitB．GrantC．RewardD．Compensate

【C9】A．doubtB．placeC．favorD．charge

The naturally fortified（强化的)hills give them the______over the enemy.A．benefitB．profitC．

The underline word “it” in the second paragraph refers to “ ” .A. the energy benefitB.

52._________A. favourB. profitC. gainD. value