高一英语上册Unit5基础巩固讲解6

ⅰ.单项填空
1．there are 40 students in our class，who come from a  ________of backgrounds.
a．variety                     b．mixture
c．extension                   d．combination
解析：选a。variety意为“多样性，种类”，表示“他们来自不同的背景”。mixture“混合物，混合体”；extension“伸长，伸展，延伸，范围”；combination“结合，合并，配合，组合”。
2．john worked hard at his lessons and gained ________to a famous university last year.
a．permission                 b．admission
c．agreement                 d．freedom
解析：选b。admissi 阅读全文