| A．playing | B．to be playing | C．play | D．to play |
| A．excite | B．excited | C．exciting | D．an exciting |
| A．at, for | B．at, on | C．on, for |
| A．some |
| B．many |
| C．any |
| A．twenty-nine | B．thirty | C．thirty-one |
| A．in | B．at | C．on |
| A．help | B．helping | C．to help |
| A．teacher | B．cleaner | C．businessman |
| A．Yes, he does. | B．Yes, he is. | C．Yes, he doesn’t. |
| A．to | B．in | C．from | D．of |
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