of the students in class 7 look excited A All B Each C Both D Every

of the students in class 7 look excited A All B Each C Both D Every

选A All 因为句子的谓语是复数look 所以主语应该有all.全句意思是：七班的所有学生看上去都很兴奋.

首先谓语look 是原形，所以不可能是B，也不可能是Every,Every不能接of
能选的就只有A, C,了,没上下文的话,个人认为都可以,如果只有一个的话,我就选a