1．Try ________ she might, Sue couldn't get the door open.
A. if B. when
C. since D. as
[解析]句意：虽然 Sue 试着开门了，但是她打不开。本题考查连词。as 引导让步状语从句时意为“虽然”，要求从句使用部分倒装，即从句中表语、状语或动词原形置于 as 前。此句中设空前为动词原形 Try，符合 as 的用法，故答案为D项。
[答案]D
2．Only when he reached the teahouse ______ it was the same place he'd been in last year.
A. he realized B. he did realize
C. realized he D. did he realize
[解析]句意：只是当他到了茶馆的时候，他才意识到这就是他去年来的地方。本题考查倒装。only 修饰状语置于句首时，句子(主句)需部分倒装，故答案为D项。
[答案]D
