--- Could you please clean the room?
--- _____ I have to do my homework.
| A．Yes, sure. | B．Why not? |
| C．Sorry, you can’t. | D．Sorry, I can’t. |
It's too hot. Would you mind mythe window?
| A．to pen | B．opening | C．closing | D．open |
-do you go to work every day?
-By bike.
| A．What | B．Who | C．How | D．When |
---have you been in Beijing?
--- For about ten years.
| A．How long | B．How many times | C．How much | D．How soon |
--- Why do you want to be a lawyer?
--- If l become a lawyer, I help people.
| A．will can | B．am able to | C．will be able to | D．was able to |
He's been collecting stamps _he was eight years old.
| A．when | B．while | C．and | D．since |