【C2】A．RegardlessB．BeneathC．DespiteD．Since

He looked down from the mountain to the valley（) .A beforeB beneathC beyondD behind

【C2】A．IfB．UntilC．DespiteD．Unless

【C2】A．WhenB．AsC．WhileD．Since

【C2】A．ifB．whenC．althoughD．since

【C2】A．thereforeB．ifC．despiteD．although

【C2】A．only ifB．much asC．long beforeD．ever since