复杂句式结构 — 英语词汇题
题目
Only after the survey results had been double-checked ______ the department approve the budget for further study.
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根据句意，用 have 或 has 加括号中动词的适当形式填空（过去…
have/has + 过去分词
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Mary 的乒乓球不见了。Ben 打开抽屉，把球拿出来递到 Mary 手…
句型 I find it. / Here it is.