单选题 Voice training will be ______ if you plan to go into the theatre.

单选题 Did the matter ______ occur at or about ten o'clock on the fifteenth of June?

单选题 The management ______ the right to refuse admission.

单选题 The information he provides was of ______ value.

单选题 The records ______ to show an improvement in sales that didn't exist.

单选题 She looked at me with just a(n) ______ of a smile.

单选题 We mustn't let these minor details ______ the main issue.

单选题 She felt ______ because she hadn't been invited.

单选题 A healthy diet should help your body ______ infection.