单项选择题It is essential that these application ______ forms back as early as possible.
单项选择题Dr. Smith was always ______ the poor and the sick, often providing them with free medical care.
单项选择题—You'd better ______ work too hard like this. —I see. You mean ______ too hard makes one tired and ill.
单项选择题You aye a team star! Working with ______ is really your cup of tea.
单项选择题I()have watched that movie--it'll give me horrible dreams.
A.shouldn' t B.needn' t C.couldn't D.mustn't
单项选择题______ is best known for the technique of dramatic monologue in his poems.
单项选择题He was made______the ohl lady______breaking her window.
单项选择题You should know better than______your little sister at home by herself.
单项选择题—I'm going to study engineering in Tsinghua University tomorrow. —______.
单项选择题Bats are surprisingly long-lived creatures, some ______ a life span of around 20 years.