There ___ an eraser and some books on the desk.
| A．is | B．have | C．are | D．has |
We had _______ 7-day holiday during this National holiday, but some of us felt unhappy because of _______ heavy traffic on the highways.
| A．an, the | B．a, the | C．a, a | D．an, a |
My father wants to know _________ next week .
| A．when my uncle leaves | B．when will my uncle leave |
| C．when my uncle will leave | D．when does my uncle leave |
— I haven’t got a partner _________ .
— Maybe you can ask John for help.
| A．work with | B．to work |
| C．working with | D．to work with |
Your teacher will not be happy ________you finish your homework.
| A．although | B．when | C．unless | D．because |
I often warn children ____ in the deep river.
| A．to not swim | B．not to swim |
| C．not swimming | D．not swam |