—Is Xiao Li in the classroom?
—No, he there. I saw him in the reading room just now.
| A．can’t be | B． mustn’t be |
| C．is | D．needn’t |
When I walked past his house, I heard him _______.
| A．to sing | B．sang | C．sings | D．singing |
Nancy doesn’t know ______ next week.
| A．when the meeting started |
| B．when did the meeting start |
| C．when the meeting will start |
| D．when will the meeting start |
— Do you know ____ Mr Green will come tomorrow?
— I’m not sure.
| A．why | B．when | C．how | D．whether |
Keep ______ English if you want to work on Radio Beijing.
A to study B study C studying D studies
Never give your ______information to others on the Internet.
| A．public | B．personal | C．friendly | D．useful |