Is your mother a worker? No. she __________.
A used to B was used to C used to be D used
Could you tell me _______?
| A．where the hospital was | B．where the hospital is |
| C．where was the hospital | D．where is the hospital |
The book is ____ useful one.
| A．an | B．a | C．the | D．/ |
—Would you mind my using your computer? —______
| A．Yes. Here you are. | B．No, you can’t. |
| C．No, not at all. | D．You’re welcome. |
I wonder __________ achieve a balance between my schoolwork and my hobbies.
| A．how can I | B．how I can |
| C．what can I | D．what I can |
Mother wants to spend some time chatting with me _________ she is very busy every day.
| A．and | B．or | C．but | D．so |