The little girl felt upset _________ her pet dog died.
| A．why | B．because of | C．because | D．what |
The students ____their classroom every afternoon.
A. are cleaning B. clean C. cleans
Do you like ____ in China?
A. working B. work C. works
Can you paint?________.
| A．Yes, I am. | B．Yes, I do . |
| C．No, I can. | D．Yes, a little. |
The people there are very ____ to us.
A. friend B. friendly C. friends
Thanks________helping me________my math.
| A．for; with | B．with, with |
| C．for, for | D．to ,with |