填空题imperfect
问答题我情愿你没有对任何人提及此事。(would rather)
填空题might
填空题The United Nations was organized at a meeting in California in 1945.
填空题three quarters of
多项选择题How many languages are spoken all over the world
单项选择题In order to treat a sore throat one should ________.
单项选择题According to the passage, it would appear that most sore throats _________.
填空题effective
填空题evidence