Mr. Black used to be busy. But now he’s retired and , so he has plenty of time to exer cise.
| A．hard | B．calm | C．free | D．nervous |
My brother is _____ his homework. He often _____ his homework at home.
| A．does； doing | B．doing； do |
| C．do； doing | D．doing； does |
—Here is a schoolbag. Whose is it? —Oh, it’s _______ Thank you.
| A．my | B．mine | C．me | D．I |
—_______ is this pen？ —It’s mine.
| A．What | B．Whose |
| C．Where | D．How |
This is ______ key and that is ______ eraser.
| A． a; a | B． a; an |
| C．an; a | D．an; an |
There’s ______ water in the cup.
| A．lot of | B．a lot of |
| C．many | D．a lot |