A：lay off
B：lay dow
C：lay out
D：lay aside
—What date is it today?
—It's of April．
My father's grandfather who was famous in my hometown ________ the hospital in 1923.
在我国，公民的某些权利和义务是互相结合的。以下选项中既是公民享有的权利，又是公民应尽的义务的是（ ）
①劳动 ②受教育 ③依法纳税 ④维护国家统一和全国各民族的团结
This book is ____ ____ ____ that one.
