从句引导词选择 — 英语词汇题

Complete the sentence with suitable clause words: The panel must decide ___ or n…

Choose the word that best completes the sentence: The documentary presented evid…

Fill in the blanks: The scientist ___ discovered the species explained ___ made …

填空：The volunteers, ___ had received little training before the storm, stil…

The archive preserved the map on ___ the surveyors relied; ___ the northern rout…

The reason ___ the plan failed was ___ the team had ignored the warning signs, a…