It’s very________ that, in many schools, the students are going to spend less time in doing homework than they used to .

The air in the countryside is , so many people from the city drive cars there on weekends.

Do you know the teacher ____ classes are interesting and exciting?— Yes, she is Mrs. Zhang.

Do you like fast food? —No, I don’t. I _______ go to McDonald.

Einstein, the famous scientist, was born _____ March, 1897. [ ]