请用所给单词的正确形式填空They were quarrelling about the property their father had left them when he _________.（die）
举一反三
- 请用所给单词的正确形式填空These data ________ valuable when planning monitoring programs.（be）
- 请用所给单词的正确形式填空At least two hundred people were waiting in line to buy the tickets. Some of them _________ in line for more than four hours.（stand）
- 请用所给单词的正确形式填空He is the only one of those boys who ________ willing to take on an additional assignment.（be）
- 请用所给单词的正确形式填空To go there on Monday ________ pointless ----there’s a public holiday.（be）
- 请用所给单词的正确形式填空Sitting and talking to old friends ________ a pleasant way to spend an evening.（be）