题目内容：
Since all the airline tickets were sold out, we were obliged to stay in the city for two more days. [ 1 分 ]A.were constrained to
B.had to
C.were grateful to
D.were persuaded to
参考答案：
选择题：Since all the airline tickets were sold out, we we
- 题目分类：乐山师范学院-大学英语
- 题目类型：选择题
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A.were constrained to
B.had to
C.were grateful to
D.were persuaded to