试题题干
WORD FORMATION
Complete the following sentence with the proper form of the word in the bracket.
(attend) Full-time school 
is now compulsory for all children
from 6 to 18 years old.
参考答案
试题解析
主语一般是名词，变attend为attendance。
句意：年龄在6到18岁之间的孩子们是要强制全日入学的。