---Jim, ________ read books while you are walking in the street. It’s very dangerous.
---OK, thank you.
| A．don’t | B．doesn’t | C．won’t | D．can’t |
--- Do you know who designed the CD-ROM Around the World in Eight Hours?
--- Yes. It ______ by Nancy Jackson.
| A．has designed | B．designed | C．designs | D．was designed |
--- I feel tired and sleepy.
--- Why not stop ______?
| A．relaxing | B．to relax | C．resting | D．to work |
--- Betty, could you answer my question?
--- Sorry, Mr. Green. I didn’t hear you. I _______ about something else.
| A．was thinking | B．am thinking | C．think | D．thought |
--- I won’t have time to go shopping with you this afternoon.
--- But you ________ me yesterday.
| A．ordered | B．mentioned | C．promised | D．knew |
His father often tells him _______ in that river because it’s dangerous.
| A．not to swim | B．not swim | C．swim | D．to swim |