－I enjoyed the food very much.
－I’m glad you like it. Please drop in any time you like.
－____________.
| A．Is it all right? | B．I’m afraid I won’t be free. |
| C．Yes, I will. | D．That’s great. |
We see the lightning ____ it happens, but we hear the thunder later.
| A．the moment | B．for the moment |
| C．at the moment | D．in a moment |
I decided to pay a visit to my former teacher as soon as I ____.
| A．finish what I did | B．finished what I did |
| C．would finish what I was doing | D．finished what I was doing |
. I like getting up very early in summer. The morning air is so good _________.
| A．to be breathed | B．to breathe |
| C．breathing | D．being breathed |
. My English teacher’s humor was _________ make every student burst into laughter.
| A．so as to | B．such as to |
| C．such that | D．so that |
I feel greatly honored _________ into their society.
| A．to welcome | B．welcoming |
| C．to be welcomed | D．welcomed |