—How terrible the pollution is here!
— Yes. It is harmful ________ both humans and animals.
A. for B. to C. with
Mike went to the library ____ some books the day before yesterday.
| A．borrow | B．borrows |
| C．to borrow | D．borrowed |
Nancy _____ playing the piano at 7pm. yesterday.
| A．practised | B．practises |
| C．was practised | D．was practising |
The Great Wall of China is ______wall in the world.
| A．longer | B．long | C．the longest | D．longest |
_____ is not difficult to learn English well.
| A．That | B．These | C．It | D．Those |
We can still do the work better with_____ time and______people.
| A．less; fewer | B．less; less |
| C．fewer; less | D．fewer; fewer |