虚拟语气表达愿望与假设 — 英语词汇题

Complete the sentence with the correct form of the verb in brackets: If only the…

If the volunteers ______ the local language before arriving at the refugee camp,…

After the relief talks, Nina regretted not speaking more clearly. Complete the s…

— It's a pity that Dr. Grant refused to work in the flood-stricken area. — Y…

I wish I ______ more confident when I gave my first English speech last week —…

根据句意，用 have 或 has 加括号中动词的适当形式填空（过去…