| A．You’re welcome. | B．No, thanks. | C．Welcome. |
| A．at; in | B．at; on | C．in; in |
| A．September | B．August | C．October |
| A．have | B．has | C．is |
| A．study | B．studys | C．studies |
| A．water, doesn't | B．waters, does | C．water, does |
| A．taking | B．take | C．takeing |
| A．speak, speaking | B．speaking, speak | C．speak, speak |
| A．for, to | B．to ,from | C．from, to |
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