题目内容
16．当时，我们除了保守秘密外，别无他选．At that time，wehad no choice but to keep the secret to ourselves．
分析 had no choice but to keep．
解答 答案：had no choice but to keep．本句需要完整表达除了保守秘密外，别无他选，这里是在说 at that time当时的事情，用一般过去时，表示除了…别无他选，用have no choice but to do sth，have的过去式是had，保守秘密用keep the secret，故答案是：had no choice but to keep．
点评 有一个相似的表达have nothing to do but do sth．除了…什么也没做
例如：I had nothing to do but slept all the time last Sunday．
（我上周日除了睡觉什么也没有做．）
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