Could you please tell me_?
A. why does the earth go around the sun
B. why the earth goes around the sun
C. why the earth went around the sun
---How much money does the package cost?
---It cost 20 yuan , including two CD-ROMs and a guidebook.
| A．at all | B．in all | C．of all | D．with all |
---I have been waiting here for. But where is Tom?
---He is on his way back now.
| A．sometime | B．some time | C．sometimes | D．some times |
---I’ll fly to Qingdao for my holiday this weekend.
---Wonderful! _________.
| A．Why not? | B．I hope so. |
| C．With pleasure. | D．Have a good time! |
--- Is your father in?
--- No, he ______ for three hours.
| A．was out | B．has been out | C．went out | D．has gone out |
Metal ______making machines and many other things.
| A．used to | B．is used for | C．is used as | D．is used to |