mework yesterday, but unfortunately I forgot about it totally.

He ________ goes to the National Library of China, once a month at most

Tom, what classes do you have every day—Well, Mom, we have English, math, Chinese and some______ classes.

In this institute, a medal with nine thousand dollars __________ gains success in science and technology every other year.

Neighbors _________ to the police about the dogs barking at midnight, but it didn’t work.