Lucy had few close friends. So she didn’t know ________ about the trouble.
| A．who to talk | B．who to talk to | C．who to say | D．what to talk |
—Which bus do I need _____? —Bus No. 818.
| A．to sit | B．to take | C．sitting | D．taking |
The sign 
means “ _____”.
| A．No parking | B．No U-turn |
| C．No left turn | D．No right turn |
Look! The students _____ the classroom.
| A．clean | B．are cleaning | C．are clean | D．cleaning |
—May I use your bike? —_____
| A．Of course not. |
| B．Of course. Here you are. |
| C．I don’t have a bike. |
| D．No, thanks. |
—Hi, Lily. Happy New Year! —_____
| A．Thank you. | B．Thank you all the same. |
| C．I’m OK. | D．The same to you. |