--How many students are there in the classroom?
--___________.
| A．No | B．No one | C．None | D．Nobody |
— Let’s go and listen to Mr. Smith’s speech on Western culture, shall we?
— ______ It’s getting to the end.
| A．Why not? | B．That's all right. |
| C．I’m afraid not. | D．Never mind. |
— Kitty, do you know ______?
— Sure, about forty minutes.
| A．when did their class meeting begin. |
| B．where their class meeting was held |
| C．how often their class meeting is held |
| D．how long their class meeting will last |
I can’t find my milk in the fridge now, but there ______ some just now.
| A．is | B．was |
| C．are | D．were |
— We’ve never ______ astronauts’ life though we’re interested in.
— Really? I’ll offer you some books about it.
| A．thought about | B．chatted about |
| C．learned about | D．cared about |
— Jane. I can't find Mike in the playground.
—Oh. He ______ the piano in the music room.
| A．is playing | B．was playing |
| C．has played | D．will play |