--- 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. |
I found________difficult for them to get there on time．
| A．this |
| B．it |
| C．that |
| D．one |
Your English book is on the floor．Please________．
| A．pick it up |
| B．look for it |
| C．pick up it |
| D．look it up |
Susan used to________to school，but she is used to________to school now．
| A．walk；take a bus |
| B．walk；riding a bike |
| C．walk；ride a bike |
| D．walked；took a bus |
I think every student should go to school________，but some of them are always late．
| A．by the time |
| B．on time |
| C．for a time |
| D．at times |
To keep safe，everyone________to wear a seat belt in the car．
| A．is supposed |
| B．supposes |
| C．supposed |
| D．will suppose |