--- Do you know Uncle Tom is crazy about gardening?
---Sure. He ____ his flowers in the garden now.
| A．may be watering | B．must be watering |
| C．could look after | D．ought to watch |
— Terribly sorry but I thought this was a parking lot.
— ______. Here is your ticket.
| A．That’s all right | B．Never mind |
| C．Don’t mention it | D．Sorry, that is no excuse |
You can read her own personal ______ of her experience in her diary.
| A．concept | B．account |
| C．reference | D．article |
I’d appreciate ______ if you could let me know in advance whether or not you will come.
| A．it | B．you | C．one | D．this |
— John has put forward ______ most challenging question for us to answer.
— Yes, it really is. I have never heard ______ harder one.
| A．a; the | B．the; the |
| C．a; a | D．the; a |
—This apple pie is too sweet, don’t you think so?
— ______. I think it’s just right, actually.
| A．Not really | B．I hope so |
| C．Sounds good | D．No wonder |